Update actions/checkout action to v7

Author: renovate[bot]

.github/workflows/build.yml

@@ -24,7 +24,7 @@ jobs:
     steps:
       # actions/checkout latest v6 → v6.0.1
       - name: Checkout repository
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd  # v6.0.2
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0  # v7.0.0
         with:
           fetch-depth: 0
 

.github/workflows/codeql-analysis.yml

@@ -23,7 +23,7 @@ jobs:
         language: [ 'java' ]
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
       - name: Set up Java
         uses: actions/setup-java@v5
         with: