Remove remaining buildbuddy usage (backport #11478) (backport #11488)

[mergify]

Some nightly or less-often run suites had not been updated

---

This is an automatic backport of pull request #11478 done by Mergify.

---

This is an automatic backport of pull request #11488 done by Mergify.

[mergify]

Cherry-pick of b38dc84 has failed:

On branch mergify/bp/v3.12.x/pr-11488
Your branch is up to date with 'origin/v3.12.x'.

You are currently cherry-picking commit b38dc84db5.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --skip" to skip this patch)
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Changes to be committed:
	modified:   .github/workflows/templates/test-mixed-versions.template.yaml
	modified:   .github/workflows/test-authnz.yaml
	deleted:    .github/workflows/test-erlang-git.yaml
	modified:   .github/workflows/test-mixed-versions.yaml
	modified:   .github/workflows/test-selenium.yaml
	modified:   .github/workflows/test-windows.yaml
	modified:   user-template.bazelrc

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   bazel/bzlmod/secondary_umbrella.bzl

Cherry-pick of f280891 has failed:

On branch mergify/bp/v3.12.x/pr-11488
Your branch is ahead of 'origin/v3.12.x' by 1 commit.
  (use "git push" to publish your local commits)

You are currently cherry-picking commit f28089177a.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --skip" to skip this patch)
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Unmerged paths:
  (use "git add/rm <file>..." as appropriate to mark resolution)
	deleted by them: .github/workflows/perform-bazel-execution-comparison.yaml
	both modified:   bazel/bzlmod/secondary_umbrella.bzl

no changes added to commit (use "git add" and/or "git commit -a")

To fix up this pull request, you can check it out locally. See documentation: https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally