Merge pull request #68 from wollomatic/dependabot/github_actions/sigstore/cosign-installer-4.0.0

Bump sigstore/cosign-installer from 3.10.0 to 4.0.0

Author: wollomatic

.github/workflows/docker-image-release.yaml

@@ -37,7 +37,7 @@ jobs:
         run: echo "VERSION=${GITHUB_REF#refs/tags/}" >> "$GITHUB_OUTPUT"
 
       - name: Install Cosign
-        uses: sigstore/cosign-installer@v3.10.0
+        uses: sigstore/cosign-installer@v4.0.0
         with:
           cosign-release: 'v2.6.0'