chore(deps): bump org.jetbrains.dokka:dokka-maven-plugin (#262)

Bumps [org.jetbrains.dokka:dokka-maven-plugin](https://github.com/Kotlin/dokka) from 1.9.10 to 1.9.20.
- [Release notes](https://github.com/Kotlin/dokka/releases)
- [Commits](Kotlin/dokka@v1.9.10...v1.9.20)

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

pom.xml

@@ -69,7 +69,7 @@
 		<!-- https://kotlinlang.org/docs/maven.html#specifying-compiler-options -->
 		<kotlin.compiler.apiVersion>1.5</kotlin.compiler.apiVersion>
 		<kotlin.compiler.jvmTarget>${maven.compiler.source}</kotlin.compiler.jvmTarget>
-		<dokka.version>1.9.10</dokka.version>
+		<dokka.version>1.9.20</dokka.version>
 		<dokka.link.jdk.version>8</dokka.link.jdk.version>
 
 		<!-- testing dependencies versions -->