chore(release): 1.0.0-alpha.8 [skip ci]

# [1.0.0-alpha.8](https://git.gitlab.arm.com/bazel/git/compare/v1.0.0-alpha.7...v1.0.0-alpha.8) (2024-04-20)

### Bug Fixes

* **fetch:** accept references as a reference specification ([a7a49250](https://git.gitlab.arm.com/bazel/git/commit/a7a4925065cee787ec9c1762c152fa0c69faf764))