Add: Add action for reporting the conventional commits

Make the conventional commits visible in each PR.

Author: bjoernricks

.github/workflows/conventional-commits.yml

@@ -0,0 +1,12 @@
+name: Conventional Commits
+
+on:
+  pull_request:
+
+jobs:
+  conventional-commits:
+    name: Conventional Commits
+    runs-on: ubuntu-latest
+    steps:
+      - name: Report Conventional Commits
+        uses: greenbone/actions/conventional-commits@v2