Update dependency org.jetbrains.dokka:dokka-gradle-plugin to v2 (#1905)

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

gradle/libs.versions.toml

@@ -55,7 +55,7 @@ mockito = { module = "org.mockito:mockito-core", version = "5.14.0"}
 
 # plugins needed for build.gradle.kts in buildSrc
 kotlin-gradle = { module = "org.jetbrains.kotlin:kotlin-gradle-plugin", version.ref = "kotlin" }
-dokka-gradle = { module = "org.jetbrains.dokka:dokka-gradle-plugin", version = "1.9.0" } # the dokka plugin is slightly behind the main Kotlin release cycle
+dokka-gradle = { module = "org.jetbrains.dokka:dokka-gradle-plugin", version = "2.0.0" } # the dokka plugin is slightly behind the main Kotlin release cycle
 dokka-versioning = { module = "org.jetbrains.dokka:versioning-plugin", version = "2.0.0"}
 kover-gradle = { module = "org.jetbrains.kotlinx:kover-gradle-plugin", version = "0.9.0" }
 spotless-gradle = { module = "com.diffplug.spotless:spotless-plugin-gradle", version.ref = "spotless" }