Bump actions/checkout from 3 to 4

Bumps [actions/checkout](https://github.com/actions/checkout) from 3 to 4.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v3...v4)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -26,7 +26,7 @@ jobs:
         java: [ '8', '11', '17' ]
         platform: ['windows-latest', 'ubuntu-latest']
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Set up JDK ${{ matrix.java }}
       uses: actions/setup-java@v4
       with:
@@ -47,7 +47,7 @@ jobs:
         java: [ '8', '11', '17' ]
         platform: ['windows-latest', 'ubuntu-latest']
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Gradle wrapper validation
         uses: gradle/wrapper-validation-action@v3
       - name: Set up JDK
@@ -78,7 +78,7 @@ jobs:
     permissions:
       contents: write
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           persist-credentials: false # without this, all access tokens set later on will be ignored
       - name: Set up JDK

.github/workflows/gradle-wrapper-validation.yml

@@ -23,5 +23,5 @@ jobs:
     needs: [check_duplicate_workflows]
     if: ${{ needs.check_duplicate_workflows.outputs.should_skip != 'true' }}
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: gradle/wrapper-validation-action@v3