feat(RELTEC-12364): add action to lint commit messages in prs

.github/workflows/pr.yaml

@@ -0,0 +1,21 @@
+name: "Lint PR"
+
+on:
+  pull_request_target:
+    types:
+      - opened
+      - edited
+      - synchronize
+      - reopened
+
+permissions:
+  pull-requests: read
+
+jobs:
+  main:
+    name: Validate PR title
+    runs-on: ubuntu-latest
+    steps:
+      - uses: amannn/action-semantic-pull-request@v5
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

README.md

@@ -372,4 +372,4 @@ e.g: `gh webhook foward --repo=<YOUR_ORGANIZATION>/<YOUR_REPOSITORY> --url=http:
 
 [ecs]: https://www.elastic.co/guide/en/ecs/current/index.html
 
-[openid]: https://github.com/dexidp/dex
+[openid]: https://github.com/dexidp/dex