declare new auto_merge scheduled workflow (#38022)

Author: alafanechere

.github/workflows/auto_merge.yml

@@ -0,0 +1,35 @@
+name: Auto merge connector PRs Cron
+
+on:
+  schedule:
+    # 0AM UTC is 2AM CEST, 3AM EEST, 5PM PDT.
+    - cron: "0 0 * * *"
+  workflow_dispatch:
+jobs:
+  run_auto_merge:
+    name: Run auto-merge
+    runs-on: ubuntu-latest
+    permissions:
+      checks: read
+      actions: read
+      statuses: read
+      contents: read
+      pull-requests: write
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Set up Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: "3.10"
+      - name: Install and configure Poetry
+        uses: snok/install-poetry@v1
+      - name: Run auto merge
+        shell: bash
+        working-directory: airbyte-ci/connectors/auto_merge
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          AUTO_MERGE_PRODUCTION: "true"
+        run: |
+          poetry install
+          poetry run auto-merge