Merge pull request #43 from graphql-java-kickstart/renovate/actions-checkout-4.x

chore(deps): update actions/checkout action to v4

Author: setchy

.github/workflows/publish.yml

@@ -9,7 +9,7 @@ jobs:
   deploy:
     runs-on: ubuntu-22.04
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
         with:
           submodules: true  # Fetch Hugo themes (true OR recursive)
           fetch-depth: 0    # Fetch all history for .GitInfo and .Lastmod