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] <[email protected]>

build.gradle

@@ -1,5 +1,5 @@
 plugins {
-    id 'io.freefair.lombok' version "8.4" apply false
+    id 'io.freefair.lombok' version "8.6" apply false
 }
 
 allprojects {