[8.8.0] Invalidate unresolved symlink info after deletion in the RAFS

[bazel-io]

Forked from #29495

[bazel-io]

Cherry-pick was attempted but there were merge conflicts in the following file(s). Please resolve manually.

src/main/java/com/google/devtools/build/lib/remote/PathCanonicalizer.java
src/main/java/com/google/devtools/build/lib/remote/RemoteActionFileSystem.java

cc: @bazelbuild/triage

[iancha1992]

Cherry-pick was attempted but there were merge conflicts in the following file(s). Please resolve manually.

src/main/java/com/google/devtools/build/lib/remote/PathCanonicalizer.java src/main/java/com/google/devtools/build/lib/remote/RemoteActionFileSystem.java

cc: @bazelbuild/triage

cc: @tjgq @fmeum