[7.1.0] Cherry-pick the change to reduce repository invalidations to Bazel 7.1 (#20949)

HEAD is wasteful because sometimes just checking the up-to-dateness of
fetched repositories takes a lot of time (if there is a lot of hashing
to be done), so it's better to get a Skyframe cache hit if at all
possible.

This is not the full answer because repositories that depend only on
unchanged environment variables will still need to be re-checked if
there is an environment variable that does change, but it's still a step
forward.

RELNOTES: None.
Commit
https://github.com/bazelbuild/bazel/commit/80a4a1483e38353e9472ed8bfd5261efe1a6e23b



PiperOrigin-RevId: 599242763
Change-Id: I895c5793ed06ef2c7a3337ef232ab13a7596b325

Co-authored-by: Googler <lberki@google.com>