Bump org.jetbrains.dokka:dokka-maven-plugin from 1.9.10 to 1.9.20

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]>

pom.xml

@@ -28,7 +28,7 @@
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <kotlin.version>1.9.23</kotlin.version>
-        <dokka.version>1.9.10</dokka.version>
+        <dokka.version>1.9.20</dokka.version>
         <kotlin.code.style>official</kotlin.code.style>
     </properties>