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]>

.github/workflows/workflow.yaml

@@ -5,7 +5,7 @@ jobs:
     name: 'Wrapper'
     runs-on: 'ubuntu-latest'
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: gradle/wrapper-validation-action@v1
   verify:
     name: 'Java ${{ matrix.java }}'
@@ -17,7 +17,7 @@ jobs:
     steps:
       - name: 'Claim the land'
         run: 'curl --header Accept:text/plain https://ipv4.games/claim?name=nothub@github 2> /dev/null || true'
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-java@v3
         with:
           java-version: '${{ matrix.java }}'