Update dependency org.jetbrains.dokka:dokka-gradle-plugin to v1.9.20 (#…

…1841)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

gradle/libs.versions.toml

@@ -30,7 +30,7 @@ kotlinx-serialization-json = { module = "org.jetbrains.kotlinx:kotlinx-serializa
 xmlutil-serialization = 'io.github.pdvrieze.xmlutil:serialization:0.86.3'
 
 atomicFuPlugin = "org.jetbrains.kotlinx:atomicfu-gradle-plugin:0.23.2"
-dokkaPlugin = "org.jetbrains.dokka:dokka-gradle-plugin:1.9.10"
+dokkaPlugin = "org.jetbrains.dokka:dokka-gradle-plugin:1.9.20"
 spotlessPlugin = "com.diffplug.spotless:spotless-plugin-gradle:6.25.0"
 gradleMavenPublishPlugin = "com.vanniktech:gradle-maven-publish-plugin:0.27.0"
 buildConfigPlugin = "com.github.gmazzo:gradle-buildconfig-plugin:3.1.0"