Add typing_extensions as run dependency and rebuild for build=1

[valeriupredoi]

Checklist

• Used a personal fork of the feedstock to propose changes
• Bumped the build number (if the version is unchanged)
• [ ] Reset the build number to 0 (if the version changed)
• Re-rendered with the latest conda-smithy (Use the phrase @conda-forge-admin, please rerender in a comment in this PR for automated rerendering)
• Ensured the license file is being packaged.

typing_extensions needs be a core/run dependency, via direct import in upstream package, it missing leads to issues from external packages importing pyfive https://github.com/NCAS-CMS/cmip7_repack/actions/runs/22122258147/job/63944759796

[valeriupredoi]

@conda-forge-admin, please rerender

[conda-forge-admin]

Hi! This is the friendly automated conda-forge-linting service.

I just wanted to let you know that I linted all conda-recipes in your PR (recipe/meta.yaml) and found it was in an excellent condition.