Set up label sync for testing

.github/workflows/sync-labels.yml

@@ -0,0 +1,22 @@
+name: Sync labels
+on:
+    workflow_dispatch: {}
+    # schedule:
+    #     - cron: "0 2 * * *" # 2am every day
+    # push:
+    #     branches:
+    #         - develop
+    #     paths:
+    #         - .github/labels.yml
+jobs:
+    sync-labels:
+        uses: vector-im/element-meta/.github/workflows/sync-labels.yml@develop
+        with:
+            LABELS: |
+                vector-im/element-web
+                .github/labels.yml
+            DELETE: true
+            # WET: true
+            WET: false
+        secrets:
+            ELEMENT_BOT_TOKEN: ${{ secrets.ELEMENT_BOT_TOKEN }}