Bump Kotlin plugins to latest, 1.8.0 -> 1.8.20.

Author: nedtwigg

README.md

@@ -78,6 +78,8 @@
 
 # Changelog
 ## [Unreleased]
+### Changed
+- Bump Kotlin plugins to latest, `1.8.0` -> `1.8.20`.
 
 ## [7.0.1] - 2023-02-28
 ### Changed

src/main/resources/plugin-kotlin.versions

@@ -1,6 +1,6 @@
 	// https://plugins.gradle.org/plugin/org.jetbrains.dokka
-	id 'org.jetbrains.dokka'                       version '1.7.20' apply false
+	id 'org.jetbrains.dokka'                       version '1.8.10' apply false
 	// https://plugins.gradle.org/plugin/org.jetbrains.kotlin.jvm
-	id 'org.jetbrains.kotlin.jvm'                  version '1.8.0' apply false
+	id 'org.jetbrains.kotlin.jvm'                  version '1.8.20' apply false
 	// https://plugins.gradle.org/plugin/org.jetbrains.kotlin.plugin.serialization
-	id 'org.jetbrains.kotlin.plugin.serialization' version '1.8.0' apply false
+	id 'org.jetbrains.kotlin.plugin.serialization' version '1.8.20' apply false