Update imports, remove deprecated property

Author: petertrr

build.gradle.kts

@@ -4,9 +4,9 @@ import io.github.petertrr.configurePublishing
 import io.github.petertrr.ext.booleanProperty
 import io.gitlab.arturbosch.detekt.Detekt
 import org.jetbrains.kotlin.gradle.ExperimentalKotlinGradlePluginApi
+import org.jetbrains.kotlin.gradle.ExperimentalWasmDsl
 import org.jetbrains.kotlin.gradle.dsl.JvmTarget
 import org.jetbrains.kotlin.gradle.dsl.KotlinVersion
-import org.jetbrains.kotlin.gradle.targets.js.dsl.ExperimentalWasmDsl
 import org.jetbrains.kotlin.gradle.targets.js.testing.KotlinJsTest
 
 plugins {
@@ -35,7 +35,7 @@ kotlin {
             compileTaskProvider.configure {
                 compilerOptions {
                     // Minimum bytecode level is 52
-                    jvmTarget = JvmTarget.JVM_1_8
+                    jvmTarget = JvmTarget.JVM_11
 
                     // Output interfaces with default methods
                     freeCompilerArgs.addAll(

gradle.properties

@@ -1,6 +1,4 @@
 kotlin.code.style=official
-# https://kotlinlang.org/docs/whatsnew19.html#try-the-k2-compiler-in-your-project
-kotlin.experimental.tryK2=false
 org.gradle.jvmargs=-Xmx2g -XX:MaxMetaspaceSize=512m -XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF-8
 org.gradle.caching=true
 # https://kotlinlang.org/docs/whatsnew19.html#preview-of-gradle-configuration-cache