build(deps): bump cpufeatures from 0.2.11 to 0.2.12 (#524)

Bumps [cpufeatures](https://github.com/RustCrypto/utils) from 0.2.11 to 0.2.12.
- [Commits](RustCrypto/utils@cpufeatures-v0.2.11...cpufeatures-v0.2.12)

---
updated-dependencies:
- dependency-name: cpufeatures
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>