Disable cosign step in docker workflow (#4145)

- Is not working, just throws errors
- Also disable dependency workflow (is not working)

.github/workflows/docker.yaml

@@ -113,7 +113,7 @@ jobs:
             commit_hash=${{ env.git_commit_hash }}
             commit_date=${{ env.git_commit_date }}
       - name: Sign the published image
-        if: github.event_name != 'pull_request'
+        if: ${{ false }} # github.event_name != 'pull_request'
         env:
           COSIGN_EXPERIMENTAL: "true"
         run: cosign sign ${{ steps.meta.outputs.tags }}@${{