ci: add conventional commits validation workflow

- Add workflow to validate conventional commit format on pull requests
- Ensures consistent commit message formatting across the repository

Author: SeddikBellamine

.github/workflows/conventional-commits.yml

@@ -0,0 +1,12 @@
+name: Conventional Commits
+
+on: [pull_request]
+
+jobs:
+  build:
+    name: Conventional Commits
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: webiny/[email protected]