Bump io.freefair.lombok from 8.4 to 8.6

Bumps [io.freefair.lombok](https://github.com/freefair/gradle-plugins) from 8.4 to 8.6.
- [Release notes](https://github.com/freefair/gradle-plugins/releases)
- [Commits](freefair/gradle-plugins@8.4...8.6)

---
updated-dependencies:
- dependency-name: io.freefair.lombok
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

build.gradle

@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 plugins { 
-    id "io.freefair.lombok" version "8.4"
+    id "io.freefair.lombok" version "8.6"
     id "io.freefair.maven-publish-java" version "8.4"
     id "io.spring.dependency-management" version "1.1.4" 
     //id "com.github.kt3k.coveralls" version "2.8.1"