Drop manylinux2010 support

[messense]

Upstream

• pypa/manylinux: Drop support for manylinux2010 images August 1st, 2022 pypa/manylinux#1281
• rust-lang/rust:
  • Increase the minimum linux-gnu versions rust-lang/compiler-team#493
  • Increase the minimum linux-gnu versions rust-lang/rust#95026

maturin

• Deprecate manylinux2010 support #858
• Drop support when Rust 1.64.0 gets released (September 22 2022 UTC)

[messense]

I think we should first deprecate manylinux2010 support once rust-lang/rust#95026 ships in stable Rust.