Update actions/checkout action to v5

Author: renovate[bot]

.github/workflows/ci.yaml

@@ -18,7 +18,7 @@ jobs:
     name: Test JDK ${{ matrix.java }}, ${{ matrix.os }}
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - name: Set up JDK ${{ matrix.java }} ${{ matrix.distribution }}
         uses: actions/setup-java@v4
         with:

.github/workflows/site.yaml

@@ -13,7 +13,7 @@ jobs:
     if: github.repository_owner == 'mybatis' && ! contains(toJSON(github.event.head_commit.message), '[maven-release-plugin]')
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - name: Set up JDK
         uses: actions/setup-java@v4
         with: