ci: check PRs for conventional commits title

.github/workflows/semantic-pr-title.yml

@@ -0,0 +1,33 @@
+name: Ensure Conventional Commits-like PR titles
+
+on:
+  pull_request_target:
+    types: [opened, edited, synchronize]
+
+permissions:
+  pull-requests: read
+
+jobs:
+  semantic-pull-request:
+    name: Validate PR title
+    runs-on: ubuntu-latest
+    steps:
+      - uses: amannn/action-semantic-pull-request@v5
+        # add `improv` to the list of allowed types
+        with:
+          types: |
+            improv
+            fix
+            feat
+            refactor
+            build
+            ci
+            style
+            test
+            chore
+            perf
+            docs
+            break
+            revert
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}