chore(github-actions): update actions/checkout action to v7 (#165)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/build.yml

@@ -17,7 +17,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
       - name: Build and run tests
         uses: actions/setup-java@v5
         with:

.github/workflows/lint.yml

@@ -9,7 +9,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
 
       - name: Set up JDK
         uses: actions/setup-java@v5

.github/workflows/publish_maven.yml

@@ -19,7 +19,7 @@ jobs:
       contents: read
       packages: write
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
       - name: Set up Java for publishing to Maven Central Repository
         uses: actions/setup-java@v5
         with: