Bump gradle/actions from 3.5.0 to 4.0.0 (#13)

Bumps [gradle/actions](https://github.com/gradle/actions) from 3.5.0 to 4.0.0.
- [Release notes](https://github.com/gradle/actions/releases)
- [Commits](gradle/actions@d9c87d4...af1da67)

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

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

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -11,7 +11,7 @@ jobs:
         with:
           distribution: 'temurin'
           java-version: 21
-      - uses: gradle/actions/setup-gradle@d9c87d481d55275bb5441eef3fe0e46805f9ef70 # v3.5.0
+      - uses: gradle/actions/setup-gradle@af1da67850ed9a4cedd57bfd976089dd991e2582 # v4.0.0
         with:
           validate-wrappers: true
       - run: ./gradlew test jacocoTestReport