Bazel update: prep for BCR release automation

[shameekganguly]

🦟 Bug fix

Summary

Couple small fixes in MODULE.bazel as pre-work to add automation to push new releases to BCR:

• Remove archive_override for gazebo package deps and use Jetty packages from BCR instead. As a result, bazel CI will use released versions of gz deps, which is consistent with cmake CI.
• Add compatibility_level to match what is set in BCR

Checklist

• Signed all commits for DCO
• Added tests
• Updated documentation (as needed)
• Updated migration guide (as needed)
• Consider updating Python bindings (if the library has them)
• codecheck passed (See contributing)
• All tests passed (See test coverage)
• While waiting for a review on your PR, please help review another open pull request to support the maintainers
• Was GenAI used to generate this PR? If so, make sure to add "Generated-by" to your commits. (See this policy for more info.)

Note to maintainers: Remember to use Squash-Merge and edit the commit message to match the pull request summary while retaining Signed-off-by and Generated-by messages.

[shameekganguly]

Note: this PR cannot be forward-ported to main automatically since we still want the archive_overrides in MODULE.bazel on that branch. I will open a manual forward port PR once this is merged.