Bump sigstore/cosign-installer from 3.5.0 to 3.6.0 in the ci group

Bumps the ci group with 1 update: [sigstore/cosign-installer](https://github.com/sigstore/cosign-installer).


Updates `sigstore/cosign-installer` from 3.5.0 to 3.6.0
- [Release notes](https://github.com/sigstore/cosign-installer/releases)
- [Commits](sigstore/cosign-installer@v3.5.0...v3.6.0)

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

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/release.yaml

@@ -145,7 +145,7 @@ jobs:
       uses: anchore/sbom-action/download-syft@d94f46e13c6c62f59525ac9a1e147a99dc0b9bf5 # v0.17.0
 
     - name: Setup Cosign
-      uses: sigstore/cosign-installer@v3.5.0
+      uses: sigstore/cosign-installer@v3.6.0
 
     - name: Setup git config
       run: |