ci: PR title check

.github/workflows/pr-title.yml

@@ -0,0 +1,18 @@
+name: "Check PR title"
+
+on:
+  pull_request_target:
+    types:
+      - opened
+      - edited
+      - synchronize
+
+jobs:
+  main:
+    runs-on: ubuntu-latest
+    steps:
+      # Please look up the latest version from
+      # https://github.com/amannn/action-semantic-pull-request/releases
+      - uses: amannn/action-semantic-pull-request@v3.4.2
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}