Bump actions/setup-java from 3 to 4 (#61)

Bumps [actions/setup-java](https://github.com/actions/setup-java) from 3 to 4.
- [Release notes](https://github.com/actions/setup-java/releases)
- [Commits](actions/setup-java@v3...v4)

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/gradle.yml

@@ -22,7 +22,7 @@ jobs:
       uses: actions/checkout@v4
 
     - name: set up JDK
-      uses: actions/setup-java@v3
+      uses: actions/setup-java@v4
       with:
         java-version: '20'
         distribution: 'temurin'