Update kotlin monorepo to v1.7.20

Author: renovate[bot]

build.gradle

@@ -1,7 +1,7 @@
 import org.apache.tools.ant.filters.ReplaceTokens
 
 plugins {
-    id 'org.jetbrains.kotlin.jvm' version '1.6.0'
+    id 'org.jetbrains.kotlin.jvm' version '1.7.20'
     id 'maven-publish'
     id 'com.github.johnrengelman.shadow' version '7.1.2'
     id 'org.jetbrains.dokka' version '1.6.0'
@@ -29,7 +29,7 @@ repositories {
 }
 
 dependencies {
-    compileOnly 'org.jetbrains.kotlin:kotlin-stdlib:1.6.0'
+    compileOnly 'org.jetbrains.kotlin:kotlin-stdlib:1.7.20'
     compileOnly 'org.spigotmc:spigot-api:1.18.1-R0.1-SNAPSHOT'
     compileOnly 'net.md-5:bungeecord-api:1.18-R0.1-SNAPSHOT'
     compileOnly 'xyz.theprogramsrc:simplecoreapi:0.1.10-SNAPSHOT'