chore(ci): add a PR title check workflow

To make our commit messages more consistent, adds a PR check without enforcing Jira tickets being included for the time being.

Author: gagik

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

@@ -0,0 +1,20 @@
+name: "Check PR Title"
+on:
+  pull_request:
+    types: [opened, synchronize, reopened, ready_for_review, labeled, unlabeled, converted_to_draft, edited]
+
+permissions:
+  pull-requests: read # to read PR title and labels
+
+jobs:
+  check-pr-title:
+    name: Check PR Title
+    runs-on: ubuntu-latest
+    steps:
+      - name: Enforce conventional commit style
+        uses: realm/ci-actions/title-checker@d6cc8f067474759d38e6d24e272027b4c88bc0a9
+        with:
+          regex: '^(build|chore|ci|docs|feat|fix|perf|refactor|revert|style|test|ops){1}(\([\w\-\.]+\))?(!)?: .*'
+          error-hint: 'Invalid PR title. Make sure it follows the conventional commit specification (i.e. "<type>(<optional scope>): <description>") or add the no-title-validation label'
+          ignore-labels: "no-title-validation"
+