Update release helper to know about macos 10.15 and 11 wheels. (#16512)
Update release helper to know about macos 10.15 and 11 wheels. (#16512)

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