build(deps): bump io.freefair.javadoc-links from 6.6 to 6.6.1

Bumps [io.freefair.javadoc-links](https://github.com/freefair/gradle-plugins) from 6.6 to 6.6.1.
- [Release notes](https://github.com/freefair/gradle-plugins/releases)
- [Commits](freefair/gradle-plugins@6.6...6.6.1)

---
updated-dependencies:
- dependency-name: io.freefair.javadoc-links
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

build.gradle.kts

@@ -10,7 +10,7 @@ plugins {
     id("org.cadixdev.licenser") version "0.6.1"
     id("org.sonarqube") version "3.5.0.2730"
     id("io.freefair.lombok") version "6.6.1"
-    id("io.freefair.javadoc-links") version "6.6"
+    id("io.freefair.javadoc-links") version "6.6.1"
     id("io.freefair.javadoc-utf-8") version "6.6.1"
     id("io.freefair.aspectj.post-compile-weaving") version "6.6"
     id("io.freefair.maven-central.validate-poms") version "6.6.1"