.github/workflows/pull-from-git.rip.yml

+name: Repo Sync
+
+on:
+  schedule: 
+  - cron: "*/30 */2 * * *" # every 15 minutes. set to whatever interval you like
+  # Allows for manual triggers if this works.
+  workflow_dispatch:
+
+jobs:
+  repo-sync:
+    name: Repo Sync
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - uses: repo-sync/github-sync@v2
+      name: Sync repo to branch
+      with:
+        source_repo: ${{ secrets.SOURCE_REPO }}
+        source_branch: main
+        destination_branch: ${{ secrets.INTERMEDIATE_BRANCH }}
+        github_token: ${{ secrets.GITHUB_TOKEN }}
+    - uses: repo-sync/pull-request@v2
+      name: Create pull request
+      with:
+        source_branch: ${{ secrets.INTERMEDIATE_BRANCH }}
+        destination_branch: main
+        pr_title: "Pulling ${{ github.ref }} into master" # Title of pull request
+        pr-label: ":arrows_counterclockwise: repo-sync"
+        github_token: ${{ secrets.GITHUB_TOKEN }}