Prepare 2.4.0rc5. (#11937)
Prepare 2.4.0rc5. (#11937)

[ci skip-rust]
[ci skip-build-wheels]
pantsbuild/pants,benjyw/pants,benjyw/pants,benjyw/pants,pantsbuild/pants,benjyw/pants,pantsbuild/pants,pantsbuild/pants,pantsbuild/pants,benjyw/pants,benjyw/pants,pantsbuild/pants,benjyw/pants,pantsbuild/pants