Prepare 2.4.0 (#11944)
Prepare 2.4.0 (#11944)

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