Bump org.jetbrains.dokka:dokka-maven-plugin from 2.0.0 to 2.1.0

Bumps [org.jetbrains.dokka:dokka-maven-plugin](https://github.com/Kotlin/dokka) from 2.0.0 to 2.1.0.
- [Release notes](https://github.com/Kotlin/dokka/releases)
- [Commits](Kotlin/dokka@v2.0.0...v2.1.0)

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

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

build-parent/pom.xml

@@ -22,7 +22,7 @@
         <compiler-plugin.version>${version.compiler.plugin}</compiler-plugin.version>
         <kotlin.version>2.2.20</kotlin.version>
         <ksp-gradle-plugin.version>2.2.10-2.0.2</ksp-gradle-plugin.version> <!-- Kotlin Symbol Processing plugin used in a test -->
-        <dokka.version>2.0.0</dokka.version>
+        <dokka.version>2.1.0</dokka.version>
         <scala.version>2.13.12</scala.version>
         <scala-maven-plugin.version>4.9.6</scala-maven-plugin.version>
         <!-- not pretty but this is used in the codestarts and we don't want to break compatibility -->