Merge pull request #1370 from roboflow/dependabot/github_actions/actions/checkout-4

⬆️ Bump actions/checkout from 2 to 4

.github/workflows/notebook-bot.yml

@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Fetch pull request branch
-      uses: actions/checkout@v2
+      uses: actions/checkout@v4
       with:
         repository: ${{ github.event.pull_request.head.repo.full_name }}
         ref: ${{ github.event.pull_request.head.sha }}