Bump sigstore/cosign-installer from 2.1.0 to 2.2.0 (#757)

Bumps [sigstore/cosign-installer](https://github.com/sigstore/cosign-installer) from 2.1.0 to 2.2.0.
- [Release notes](https://github.com/sigstore/cosign-installer/releases)
- [Commits](https://github.com/sigstore/cosign-installer/compare/581838fbedd492d2350a9ecd427a95d6de1e5d01...d6a3abf1bdea83574e28d40543793018b6035605

)

---
updated-dependencies:
- dependency-name: sigstore/cosign-installer
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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