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

# [1.0.0-alpha.3](https://git.gitlab.arm.com/bazel/rules_diff/compare/v1.0.0-alpha.2...v1.0.0-alpha.3) (2024-02-20)

### Code Refactoring

* remove `cli` toolchain ([f5cf3d31](https://git.gitlab.arm.com/bazel/rules_diff/commit/f5cf3d314f862f45b7fa7cee9d512855fd91fb45))

### BREAKING CHANGES

* `@rules_diff//diff/toolchain/cli:type` removed.

Use `@rules_diff//diff/toolchain/diff:type` instead.