chore(release): 1.0.0-alpha.1 [skip ci]

# 1.0.0-alpha.1 (2024-02-19)

### Features

* add `diff_directory_test` rule ([48646dd8](https://git.gitlab.arm.com/bazel/rules_diff/commit/48646dd837cb2e63f0bf0c7e70bf87ca98502e3f))
* add `diff_file_test` rule ([f9d3cac0](https://git.gitlab.arm.com/bazel/rules_diff/commit/f9d3cac0539fd47b2dd05d32c655e378654c7f0d))
* add Batch support for `diff_{file,directory}_test` ([d7ec8340](https://git.gitlab.arm.com/bazel/rules_diff/commit/d7ec83401f8c8238906f8c895495df0e8a88ce0c))
* add hermetic `diff` CLI toolchain ([58fd465d](https://git.gitlab.arm.com/bazel/rules_diff/commit/58fd465d0f7a3cd73ccc6d921a96fdfe19c185a6))
* added semantic release to bazel template ([a8a66341](https://git.gitlab.arm.com/bazel/rules_diff/commit/a8a663411461dfd66fcc36635b1659a1beb3bd6b))