add PR conventional commit validation (#10)

.github/workflows/ci-pr-only-cov.yaml

@@ -0,0 +1,18 @@
+# Copied & adapted (job name, version label) from
+# https://github.com/ytanikin/PRConventionalCommits?tab=readme-ov-file#usage-with-labeling-where-label-is-just-a-task-type
+
+name: PR Conventional Commit Validation
+
+on:
+  pull_request:
+    types: [opened, synchronize, reopened, edited]
+
+jobs:
+  validate-pr-title:
+    name: Validate PR Title
+    runs-on: ubuntu-latest
+    steps:
+      - name: PR Conventional Commit Validation
+        uses:  ytanikin/PRConventionalCommits@8d258b54939f6769fcd935a52b96d6b0383a00c5 # v1.2.0
+        with:
+          task_types: '["feat","fix","docs","test","ci","refactor","perf","chore","revert"]'