Merge pull request #24 from InteractionDesignFoundation/renovate/actions-checkout-4.x

Update actions/checkout action to v4

Author: alies-dev

.github/workflows/format_php.yml

@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 7
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           ref: ${{ github.head_ref }}