chore(release): 1.0.0-alpha.15 [skip ci]

# [1.0.0-alpha.15](https://git.gitlab.arm.com/bazel/rules_toolchain/compare/v1.0.0-alpha.14...v1.0.0-alpha.15) (2024-01-10)

### Bug Fixes

* **sw_vers:** support single and double Darwin OS versions ([bb887b98](https://git.gitlab.arm.com/bazel/rules_toolchain/commit/bb887b98b601be790b3a1cc95486de9ed30f9a83))