chore(release): 1.0.0-alpha.3 [skip ci]

# [1.0.0-alpha.3](https://git.gitlab.arm.com/bazel/rules_toolchain/compare/v1.0.0-alpha.2...v1.0.0-alpha.3) (2023-11-16)

### Bug Fixes

* **release:** correct source archive upload ([05f5f208](https://git.gitlab.arm.com/bazel/rules_toolchain/commit/05f5f208f15461ad28bcc3699ce9a8d6c838121a))