[bazel] Flip --enable_bzlmod to true

[rupprecht]

Switches to the config added in #164891

Fixes #55924

[rupprecht]

I don't know what kind of testing we need to do for this -- besides our own CI, which passes. How much time do people need to test this out in their own repos? Is it easier to just land this now and revert later if downstream users discover issues? Unless others have opinions, I'll plan on giving this a week.

[keith]

This is harmless since downstream repos shouldn't inherit this bazelrc setting. The last PR is the one that would affect folks

[rupprecht]

This is harmless since downstream repos shouldn't inherit this bazelrc setting. The last PR is the one that would affect folks

Ah, didn't realize that :)

In that case, I guess I might as well land this now?

The next step after this would be to delete the WORKSPACE file. Do you know what downstream things, if anything, we would need to wait for before deleting that?

[keith]

That should be safe too. Next breaking thing would be deleting the deps bzl file