Update dependency org.jetbrains.dokka:dokka-gradle-plugin to v2 (#54)

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

gradle/libs.versions.toml

@@ -11,7 +11,7 @@ kotlinCompilerTester = "dev.zacsweers.kctfork:core:0.4.1"
 
 buildConfigPlugin = "com.github.gmazzo:gradle-buildconfig-plugin:3.1.0"
 gradleMavenPublishPlugin = "com.vanniktech:gradle-maven-publish-plugin:0.30.0"
-dokkaPlugin = "org.jetbrains.dokka:dokka-gradle-plugin:1.9.20"
+dokkaPlugin = "org.jetbrains.dokka:dokka-gradle-plugin:2.0.0"
 
 autoService-compiler = { module = "com.google.auto.service:auto-service", version.ref = "auto-service" }
 autoService-annotations = { module = "com.google.auto.service:auto-service-annotations", version.ref = "auto-service" }