Add automerge (#8214)

.github/workflows/automerge.yml

@@ -0,0 +1,35 @@
+name: Automerge
+
+env:
+    MERGE_METHOD: 'squash'
+    MERGE_RETRY_SLEEP: 300000
+
+on:
+    pull_request:
+        types:
+            - labeled
+            - unlabeled
+            - synchronize
+            - opened
+            - edited
+            - ready_for_review
+            - reopened
+            - unlocked
+    check_suite:
+        types:
+            - completed
+    status: {}
+
+jobs:
+    automerge:
+        name: Automerge if requested
+        runs-on: ubuntu-latest
+        env:
+            IS_POSTHOG_BOT_AVAILABLE: ${{ secrets.POSTHOG_BOT_GITHUB_TOKEN != '' }}
+        steps:
+            - name: Automerge
+              if: env.IS_POSTHOG_BOT_AVAILABLE == 'true'
+              uses: pascalgn/[email protected]
+              env:
+                  GITHUB_TOKEN: ${{ secrets.POSTHOG_BOT_GITHUB_TOKEN }}
+            - run: echo