feat(bazel): update deps in WORKSPACE.bzlmod

[aherrmann]

Changes

Bazel workspace dependencies are additionally looked up and updated in WORKSPACE.bzlmod files.

Context

With --enable_bzlmod Bazel module dependencies that are compatible with bzlmod are declared in MODULE.bazel. But, not all dependencies are compatible with bzlmod, yet. Such dependencies can be declared using the old repository rule mechanism in WORKSPACE.bzlmod.

Documentation (please check one with an [x])

• I have updated the documentation, or
• No documentation update is required
  (The documention speaks of WORKSPACE in general)

How I've tested my work (please select one)

I have verified these changes via:

• Code inspection only, or
• Newly added/modified unit tests, or
• No unit tests but ran on a real repository, or
• Both unit tests + ran on a real repository

[CLAassistant]

All committers have signed the CLA.

[rarkins]

Does it otherwise "just work"? The other files are exactly the same other than the file extension?

[aherrmann]

Yes, it works fine for the other files. I noticed that WORKSPACE.bzlmod was missing in aherrmann/rules_zig#301. It correctly updated the other files, but missed https://github.com/aherrmann/rules_zig/blob/main/WORKSPACE.bzlmod and https://github.com/aherrmann/rules_zig/blob/main/e2e/workspace/WORKSPACE.bzlmod.

There is an unrelated issue that I've been meaning to report but haven't gotten around to where it misses the sha256 and strip_prefix attributes in .bzl files, see aherrmann/rules_zig@b1e3b17 for example.

UPDATE Reported here #29004