Bump org.jetbrains.dokka from 1.9.20 to 2.1.0

Bumps [org.jetbrains.dokka](https://github.com/Kotlin/dokka) from 1.9.20 to 2.1.0.
- [Release notes](https://github.com/Kotlin/dokka/releases)
- [Commits](Kotlin/dokka@v1.9.20...v2.1.0)

---
updated-dependencies:
- dependency-name: org.jetbrains.dokka
  dependency-version: 2.1.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

build.gradle.kts

@@ -3,7 +3,7 @@ val junitVersion by extra { "5.8.1" }
 
 plugins {
     kotlin("jvm") version "2.2.21"
-    id("org.jetbrains.dokka") version "1.9.20"
+    id("org.jetbrains.dokka") version "2.1.0"
     id("io.github.gradle-nexus.publish-plugin") version "2.0.0"
     `java-library`
     `maven-publish`