[workflow] Fix sign and message params

Signed-off-by: dd di cesare <didi@posteo.net>

.github/workflows/release.yaml

@@ -70,7 +70,7 @@ jobs:
         run: |
           git config --global user.name "github-actions[bot]"
           git config --global user.email "github-actions[bot]@users.noreply.github.com"
-          git add -A && git commit -m -s "Prepared release v${{ inputs.kuadrantOperatorVersion }}"
+          git add -A && git commit -s -m "Prepared release v${{ inputs.kuadrantOperatorVersion }}"
           git push origin release-v${{ inputs.kuadrantOperatorVersion }}
       - name: Create release
         uses: softprops/action-gh-release@v1