Update pixi lockfile (#1580)

Summary:
# Dependencies

<details open>
<summary>Explicit dependencies</summary>

|Dependency|Before|After|Change|Environments|
|-|-|-|-|-|
|[drjit-cpp](https://prefix.dev/channels/conda-forge/packages/drjit-cpp)|cuda129_llvm21_3|cuda130_llvm21_4|Only build string|{default, gpu-wheel-build-py312, gpu-wheel-build-py313, legacy-deps, legacy-deps-py313, minimal-build, py312, py313} on linux-64|
|[drjit-cpp](https://prefix.dev/channels/conda-forge/packages/drjit-cpp)|cpu_nollvm_3|cpu_nollvm_4|Only build string|{default, py312, py313} on linux-aarch64|
|[drjit-cpp](https://prefix.dev/channels/conda-forge/packages/drjit-cpp)|cpu_llvm21_3|cpu_llvm21_4|Only build string|{default, legacy-deps, legacy-deps-py313, py312, py313} on {osx-64, win-64}<br/>{gpu, py312-cuda129} on win-64-cuda-12|
|[drjit-cpp](https://prefix.dev/channels/conda-forge/packages/drjit-cpp)|cuda129_llvm21_3|cpu_llvm21_4|Only build string|{gpu, py312-cuda129} on linux-64-cuda-12|

</details>

<details>
<summary>Implicit dependencies</summary>

|Dependency|Before|After|Change|Environments|
|-|-|-|-|-|
|[cuda-cudart](https://prefix.dev/channels/conda-forge/packages/cuda-cudart)|12.9.79|13.3.29|Major Upgrade|{default, gpu-wheel-build-py312, gpu-wheel-build-py313, legacy-deps, legacy-deps-py313, minimal-build, py312, py313} on linux-64|
|[cuda-cudart_linux-64](https://prefix.dev/channels/conda-forge/packages/cuda-cudart_linux-64)|12.9.79|13.3.29|Major Upgrade|{default, gpu-wheel-build-py312, gpu-wheel-build-py313, legacy-deps, legacy-deps-py313, minimal-build, py312, py313} on linux-64|
|[cuda-version](https://prefix.dev/channels/conda-forge/packages/cuda-version)|12.9|13.3|Major Upgrade|{default, gpu-wheel-build-py312, gpu-wheel-build-py313, legacy-deps, legacy-deps-py313, minimal-build, py312, py313} on linux-64|
|[ca-certificates](https://prefix.dev/channels/conda-forge/packages/ca-certificates)|2026.6.17|2026.7.22|Minor Upgrade|{default, legacy-deps, legacy-deps-py313, py312, py313} on {linux-64, osx-64, osx-arm64, win-64}<br/>{gpu, py312-cuda129} on {linux-64-cuda-12, win-64-cuda-12}<br/>{gpu-wheel-build-py312, gpu-wheel-build-py313, minimal-build} on linux-64<br/>{default, py312, py313} on linux-aarch64|
|[certifi](https://prefix.dev/channels/conda-forge/packages/certifi)|2026.6.17|2026.7.22|Minor Upgrade|{default, legacy-deps, legacy-deps-py313, py312, py313} on {linux-64, osx-64, osx-arm64, win-64}<br/>{gpu, py312-cuda129} on {linux-64-cuda-12, win-64-cuda-12}<br/>{gpu-wheel-build-py312, gpu-wheel-build-py313, minimal-build} on linux-64<br/>{default, py312, py313} on linux-aarch64|
|[filelock](https://prefix.dev/channels/conda-forge/packages/filelock)|3.30.1|3.32.0|Minor Upgrade|{default, legacy-deps, legacy-deps-py313, py312, py313} on {linux-64, osx-64, osx-arm64, win-64}<br/>{gpu, py312-cuda129} on {linux-64-cuda-12, win-64-cuda-12}<br/>{gpu-wheel-build-py312, gpu-wheel-build-py313, minimal-build} on linux-64<br/>{default, py312, py313} on linux-aarch64|
|[platformdirs](https://prefix.dev/channels/conda-forge/packages/platformdirs)|4.10.0|4.11.0|Minor Upgrade|{default, legacy-deps, legacy-deps-py313, py312, py313} on {linux-64, osx-64, osx-arm64, win-64}<br/>{gpu, py312-cuda129} on {linux-64-cuda-12, win-64-cuda-12}<br/>{gpu-wheel-build-py312, gpu-wheel-build-py313, minimal-build} on linux-64<br/>{default, py312, py313} on linux-aarch64|
|[tqdm](https://pypi.org/project/tqdm)|4.68.4|4.69.0|Minor Upgrade|{default, legacy-deps, legacy-deps-py313, py312, py313} on {linux-64, osx-64, osx-arm64, win-64}<br/>{gpu, py312-cuda129} on {linux-64-cuda-12, win-64-cuda-12}<br/>{default, py312, py313} on linux-aarch64|
|[bracex](https://prefix.dev/channels/conda-forge/packages/bracex)|3.0|3.0.1|Patch Upgrade|{default, legacy-deps, legacy-deps-py313, py312, py313} on {linux-64, osx-64, osx-arm64, win-64}<br/>{gpu, py312-cuda129} on {linux-64-cuda-12, win-64-cuda-12}<br/>{gpu-wheel-build-py312, gpu-wheel-build-py313, minimal-build} on linux-64|
|[fontconfig](https://prefix.dev/channels/conda-forge/packages/fontconfig)|2.18.1|2.18.2|Patch Upgrade|{default, legacy-deps, legacy-deps-py313, py312, py313} on {linux-64, osx-arm64, win-64}<br/>{gpu, py312-cuda129} on {linux-64-cuda-12, win-64-cuda-12}<br/>{gpu-wheel-build-py312, gpu-wheel-build-py313, minimal-build} on linux-64<br/>{default, py312, py313} on linux-aarch64|
|[imageio](https://pypi.org/project/imageio)|2.37.3|2.37.4|Patch Upgrade|{default, legacy-deps, legacy-deps-py313, py312, py313} on {linux-64, osx-64, osx-arm64, win-64}<br/>{gpu, py312-cuda129} on {linux-64-cuda-12, win-64-cuda-12}<br/>{default, py312, py313} on linux-aarch64|
|[libvulkan-loader](https://prefix.dev/channels/conda-forge/packages/libvulkan-loader)|1.4.341.0|1.4.350.1|Patch Upgrade|{default, py312, py313} on {linux-64, linux-aarch64, win-64}<br/>{legacy-deps, legacy-deps-py313} on {linux-64, win-64}<br/>{gpu, py312-cuda129} on {linux-64-cuda-12, win-64-cuda-12}<br/>{gpu-wheel-build-py312, gpu-wheel-build-py313, minimal-build} on linux-64|
|[websockets](https://pypi.org/project/websockets)|16.1|16.1.1|Patch Upgrade|{default, legacy-deps, legacy-deps-py313, py312, py313} on {linux-64, osx-64, osx-arm64, win-64}<br/>{gpu, py312-cuda129} on {linux-64-cuda-12, win-64-cuda-12}<br/>{default, py312, py313} on linux-aarch64|
|[cuda-cupti](https://prefix.dev/channels/conda-forge/packages/cuda-cupti)|hac47afa_1|hac47afa_2|Only build string|{gpu, py312-cuda129} on win-64-cuda-12|
|[cuda-cupti](https://prefix.dev/channels/conda-forge/packages/cuda-cupti)|h676940d_1|h676940d_2|Only build string|{gpu, py312-cuda129} on linux-64-cuda-12|
|[icu](https://prefix.dev/channels/conda-forge/packages/icu)|hef89b57_0|hef89b57_1|Only build string|{default, legacy-deps, legacy-deps-py313, py312, py313} on osx-arm64|
|[icu](https://prefix.dev/channels/conda-forge/packages/icu)|hcab7f73_0|hcab7f73_1|Only build string|{default, py312, py313} on linux-aarch64|
|[icu](https://prefix.dev/channels/conda-forge/packages/icu)|h637d24d_0|h637d24d_1|Only build string|{default, legacy-deps, legacy-deps-py313, py312, py313} on win-64<br/>{gpu, py312-cuda129} on win-64-cuda-12|
|[icu](https://prefix.dev/channels/conda-forge/packages/icu)|h33c6efd_0|h33c6efd_1|Only build string|{default, gpu-wheel-build-py312, gpu-wheel-build-py313, legacy-deps, legacy-deps-py313, minimal-build, py312, py313} on linux-64<br/>{gpu, py312-cuda129} on linux-64-cuda-12|
|[icu](https://prefix.dev/channels/conda-forge/packages/icu)|h25d91c4_0|h25d91c4_1|Only build string|{default, legacy-deps, legacy-deps-py313, py312, py313} on osx-64|
|[pixman](https://prefix.dev/channels/conda-forge/packages/pixman)|h7ac5ae9_1|h7ac5ae9_2|Only build string|{default, py312, py313} on linux-aarch64|
|[pixman](https://prefix.dev/channels/conda-forge/packages/pixman)|h81086ad_1|h784d473_2|Only build string|{default, legacy-deps, legacy-deps-py313, py312, py313} on osx-arm64|
|[pixman](https://prefix.dev/channels/conda-forge/packages/pixman)|h54a6638_1|h54a6638_2|Only build string|{default, gpu-wheel-build-py312, gpu-wheel-build-py313, legacy-deps, legacy-deps-py313, minimal-build, py312, py313} on linux-64<br/>{gpu, py312-cuda129} on linux-64-cuda-12|
|[pixman](https://prefix.dev/channels/conda-forge/packages/pixman)|h5112557_1|h5112557_2|Only build string|{default, legacy-deps, legacy-deps-py313, py312, py313} on win-64<br/>{gpu, py312-cuda129} on win-64-cuda-12|
|[pixman](https://prefix.dev/channels/conda-forge/packages/pixman)|ha059160_1|h2fb4741_2|Only build string|{default, legacy-deps, legacy-deps-py313, py312, py313} on osx-64|

</details>

[^1]: **Bold** means explicit dependency.
[^2]: Dependency got downgraded.

Pull Request resolved: #1580

Reviewed By: nickyhe-gemini

Differential Revision: D113601427

fbshipit-source-id: d77e2a79489771ae79e2f4dfc7c6e62a598dd918

Author: facebook-github-bot