Add Bzlmod support for JAX.
Key changes:
- Adds MODULE.bazel to define core dependencies (Abseil, Skylib, Python, XLA/TSL, etc.).
- Updates .bazelrc with Bzlmod-specific flags, including --enable_bzlmod and --noenable_workspace.
- Configures GitHub Actions to support Bzlmod-based builds and tests.
Limitation:
- Only support testing against python 3.11 with Bzlmod
Imported from GitHub PR: https://github.com/jax-ml/jax/pull/32029
PiperOrigin-RevId: 860049723