v2.2.1

What's Changed

• Fix PyPI trusted publisher environment by @zackees in #173
• Allow PyPI release retry after partial publish by @zackees in #174
• Add native build artifact attestations by @zackees in #175
• docs: record soldr build benchmark by @zackees in #177
• Fix Teensy builds with GCC 11 toolchain by @zackees in #180
• Instrument ESP32 framework library build tail by @zackees in #179
• test: cover mtime-stable watch fingerprints by @zackees in #178
• Use setup-soldr in CI workers by @zackees in #184
• Remove Rust tool wrapper shims by @zackees in #182

Full Changelog: v2.2.0...v2.2.1