Bump actions/setup-java from 5 to 5.6.0 (#5983)

Bumps [actions/setup-java](https://github.com/actions/setup-java) from 5 to 5.6.0.
- [Release notes](https://github.com/actions/setup-java/releases)
- [Commits](https://github.com/actions/setup-java/compare/v5...v5.6.0)

---
updated-dependencies:
- dependency-name: actions/setup-java
  dependency-version: 5.6.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

.github/workflows/build.yml

@@ -81,7 +81,7 @@ jobs:
         out-file-path: V2rayNG/app/libs/
 
     - name: Setup Java
-      uses: actions/setup-java@v5
+      uses: actions/setup-java@v5.6.0
       with:
         distribution: 'temurin'
         java-version: '21'