chore(deps): update actions/checkout action to v7

Author: renovate[bot]

.github/workflows/build.yml

@@ -17,7 +17,7 @@ jobs:
         java: [ 21 ]
       fail-fast: true
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
       - name: JDK ${{ matrix.java }}
         uses: actions/setup-java@v5
         with: