Update sigstore/cosign-installer action to v3

Author: renovate[bot]

.github/workflows/ci.yaml

@@ -90,7 +90,7 @@ jobs:
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
 
-      - uses: sigstore/cosign-installer@9becc617647dfa20ae7b1151972e9b3a2c338a2b # tag=v2.8.1
+      - uses: sigstore/cosign-installer@fb28c2b6339dcd94da6e4cbcbc5e888961f6f8c3 # v3.9.0
 
       - name: Sign the images
         run: cosign sign ${TAGS}