chore(deps): bump sigstore/cosign-installer from 3.1.0 to 3.1.1 (#2607)

Bumps [sigstore/cosign-installer](https://github.com/sigstore/cosign-installer) from 3.1.0 to 3.1.1.
- [Release notes](https://github.com/sigstore/cosign-installer/releases)
- [Commits](d13028333d...6e04d228eb)

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

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

.github/workflows/images.yaml

@@ -105,7 +105,7 @@ jobs:
 
     # Sign images if not a PR.
     - if: github.event_name != 'pull_request'
-      uses: sigstore/cosign-installer@d13028333d784fcc802b67ec924bcebe75aa0a5f # v3.1.0
+      uses: sigstore/cosign-installer@6e04d228eb30da1757ee4e1dd75a0ec73a653e06 # v3.1.1
     - if: github.event_name != 'pull_request'
       run: |
         cosign sign --yes \