build(deps): Bump sigstore/cosign-installer in the actions group

Bumps the actions 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: actions
...

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

.github/workflows/release.yaml

@@ -58,7 +58,7 @@ jobs:
 
       # Create a signature of the rules artifact as OCI artifact
       - name: Install Cosign
-        uses: sigstore/cosign-installer@v3.5.0
+        uses: sigstore/cosign-installer@v3.6.0
 
       - name: Login with cosign
         run: cosign login $OCI_REGISTRY --username ${{ github.repository_owner }} --password ${{ secrets.GITHUB_TOKEN }}