1Before this PR the `coverage_tool` automatically registered by `rules_python` 2was visible outside the toolchain repository. This fixes it to be consistent 3with `non-bzlmod` setups and ensures that the default `coverage_tool` is not 4visible outside the toolchain repos. 5 6This means that the `MODULE.bazel` file can be cleaned-up at the expense of 7relaxing the `coverage_tool` attribute for the `python_repository` to be a 8simple string as the label would be evaluated within the context of 9`rules_python` which may not necessarily resolve correctly without the 10`use_repo` statement in our `MODULE.bazel`. 11