[bazel] Sort bazel_deps into 'compat floor' and 'latest' sections (#207605)
Some dependencies have big knock-on effects and to the benefit of
consumers should best be tracked as min-supported-version. This change
divides the `MODULE.bazel` file into two sections where one contains
known sensitive dependencies that should only be bumped as needed and
the second are flex dependencies that can freely be updated with minimal
impact to external consumers.