Update gradle and kotlin

buildSrc/build.gradle.kts

@@ -2,7 +2,7 @@ import java.util.Properties
 
 plugins {
     `kotlin-dsl`
-    kotlin("jvm") version embeddedKotlinVersion
+    kotlin("jvm") version "1.4.0"
 }
 
 repositories {

gradle/wrapper/gradle-wrapper.properties

@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-6.5.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.6-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists

worldedit-core/build.gradle.kts

@@ -10,7 +10,7 @@ plugins {
     id("net.ltgt.apt-idea")
     id("antlr")
     id("com.mendhak.gradlecrowdin")
-    kotlin("jvm") version "1.3.72"
+    kotlin("jvm") version "1.4.0"
 }
 
 repositories {
@@ -61,7 +61,7 @@ dependencies {
     "compile"("com.plotsquared:PlotSquared-Core:5.12.2") {
         isTransitive = false
     }
-    implementation(kotlin("stdlib-jdk8", "1.3.72"))
+    implementation(kotlin("stdlib-jdk8", "1.4.0"))
 }
 
 tasks.named<Test>("test") {

worldedit-core/doctools/build.gradle.kts

@@ -1,7 +1,7 @@
 import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
 
 plugins {
-    kotlin("jvm") version "1.3.72"
+    kotlin("jvm") version "1.4.0"
     application
 }
 

worldedit-libs/core/build.gradle.kts

@@ -14,5 +14,5 @@ dependencies {
     "shade"("org.enginehub.piston:core:${Versions.PISTON}")
     "shade"("org.enginehub.piston.core-ap:runtime:${Versions.PISTON}")
     "shade"("org.enginehub.piston:default-impl:${Versions.PISTON}")
-    "shade"("org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.3.72")
+    "shade"("org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.4.0")
 }