After #400, the gazelle plugin has been cleanly separated out into its own bazel workspace, which will soon finally allow us to mark it stable. But this means:
* we need to change our bazelci config to explicitly build and test it, since `bazel build //...` no longer includes the plugin;
* we need to add proper distribution rules for it;
* we need to update release instructions, since now we will have two distribution tarballs
Creates MODULE.bazel and WORKSPACE.bzlmod files to enable bazel-skylib
to work with the `--experimental_enable_bzlmod` flag.
rules_go has been updated as the previously used version is not
available in the BCR.
stardoc has been updated due to a strange issue with Bzlmod enabled that
caused the `diff_test` and `unittest` docs to be generated without any
contents that was magically fixed upon updating.
bazelbuild/bazel-central-registry#124
Co-authored-by: Alexandre Rostovtsev <arostovtsev@google.com>
