deps: bump rustc-hash from 2.1.1 to 2.1.2 (#47)

Bumps [rustc-hash](https://github.com/rust-lang/rustc-hash) from 2.1.1 to 2.1.2.
- [Changelog](https://github.com/rust-lang/rustc-hash/blob/master/CHANGELOG.md)
- [Commits](rust-lang/rustc-hash@v2.1.1...v2.1.2)

---
updated-dependencies:
- dependency-name: rustc-hash
  dependency-version: 2.1.2
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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Author: dependabot[bot]