FEC-881- CC signed commit (#1450)

feat(claude): enable commit signing for CC action-option1

Author: valoriecarli

.github/workflows/claude.yml

@@ -35,6 +35,7 @@ jobs:
         uses: anthropics/claude-code-action@v1
         with:
           anthropic_api_key: ${{ secrets.ANTHROPIC_API_KEY }}
+          use_commit_signing: true
 
           # This is an optional setting that allows Claude to read CI results on PRs
           additional_permissions: |