Bump org.jetbrains.dokka from 1.9.10 to 1.9.20 (hfhbd#252)

Author: dependabot[bot]

gradle/libs.versions.toml

@@ -26,4 +26,4 @@ publish = { id = "io.github.gradle-nexus.publish-plugin", version = "1.3.0" }
 binary = { id = "org.jetbrains.kotlinx.binary-compatibility-validator", version = "0.14.0" }
 sqldelight = { id = "app.cash.sqldelight", version.ref = "sqldelight" }
 licensee = { id = "app.cash.licensee", version = "1.9.1" }
-dokka = { id = "org.jetbrains.dokka", version = "1.9.10" }
+dokka = { id = "org.jetbrains.dokka", version = "1.9.20" }