Workflow to revert any PR title edits

Author: ondrejmirtes

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

@@ -0,0 +1,30 @@
+# https://help.github.com/en/categories/automating-your-workflow-with-github-actions
+
+name: "Pull request title edited"
+
+on:
+  pull_request_target:
+    types:
+      - edited
+
+concurrency:
+  group: pr-title-edited-${{ github.head_ref }} # will be canceled on subsequent pushes in pull requests
+  cancel-in-progress: true
+
+jobs:
+  revert-title:
+    name: "Revert title"
+    runs-on: 'ubuntu-latest'
+
+    steps:
+      - run: echo "${{ toJSON(github.event.changes) }}"
+      - uses: octokit/request-action@v2.x
+        if: github.event.sender.login != 'phpstan-bot' && github.event.changes.title.from != ''
+        with:
+          route: PATCH /repos/{owner}/{repo}/pulls/{pull_number}
+          owner: phpstan
+          repo: phpstan-src
+          pull_number: ${{ github.event.number }}
+          title: ${{ github.event.changes.title.from }}
+        env:
+          GITHUB_TOKEN: ${{ secrets.PHPSTAN_BOT_TOKEN }}