Set version to 13.0.0-alpha.3 (#8267) #9629

Job	Run time
build-compiler (macos-15-intel, 5.3.0, true, darwin-x64, x86_64-apple-darwin)	16m 24s
test-devcontainer	17m 29s
build-compiler (ubuntu-24.04-arm, ocaml-variants.5.3.0+options,ocaml-option-static, true, true, t...	8m 30s
build-compiler (ubuntu-24.04, ocaml-variants.5.0.0+options,ocaml-option-static, linux-x64, x86_64...	7m 21s
build-compiler (windows-2025, 5.3.0, true, win32-x64, x86_64-pc-windows-gnu, .exe)	15m 4s
build-compiler (macos-15, 5.3.0, true, darwin-arm64, aarch64-apple-darwin)	9m 24s
build-compiler (ubuntu-24.04, ocaml-variants.5.3.0+options,ocaml-option-static, true, true, linux...	7m 0s
pkg-pr-new	56s
api-docs	5s
test-installation-pnpm (ubuntu-24.04)	15s
test-integration-rewatch (ubuntu-24.04)	3m 47s
test-installation-pnpm (macos-15-intel)	21s
test-installation-npm (macos-15)	20s
test-installation-npm (ubuntu-24.04)	12s
test-installation-npm (ubuntu-24.04-arm)	17s
test-integration-rewatch (ubuntu-24.04-arm)	2m 53s
test-installation-npm (macos-15-intel)	27s
test-installation-pnpm (ubuntu-24.04-arm)	15s
test-integration-rewatch (macos-15-intel)	6m 42s
test-integration-rewatch (macos-15)	3m 52s
test-installation-pnpm (macos-15)	18s
test-installation-pnpm (windows-2025)	36s
test-installation-npm (windows-2025)	1m 8s
test-integration-rewatch (windows-2025)	7m 8s
publish	0s
	1h 50m 44s

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