Bump actions/setup-java from 4 to 5

Bumps [actions/setup-java](https://github.com/actions/setup-java) from 4 to 5.
- [Release notes](https://github.com/actions/setup-java/releases)
- [Commits](actions/setup-java@v4...v5)

---
updated-dependencies:
- dependency-name: actions/setup-java
  dependency-version: '5'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/unit-tests.yml

@@ -12,7 +12,7 @@ jobs:
     steps:
     - uses: actions/checkout@v5
     - name: Set up JDK 8
-      uses: actions/setup-java@v4
+      uses: actions/setup-java@v5
       with:
         java-version: "8"
         distribution: "adopt"