Update actions/checkout action to v4

Author: renovate[bot]

.github/workflows/deploy.yml

@@ -7,7 +7,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
     - name: Grab version info
       id: tag
       run: |