removed multi-release-jar plugin and Gradle version bump

build.gradle.kts

@@ -1,19 +1,8 @@
-buildscript {
-    repositories {
-        mavenLocal()
-    }
-    dependencies {
-        classpath(group = "net.woggioni.plugins", name = "multi-release-jar", version = property("net.woggioni.plugins.version") as String)
-    }
-}
-
 plugins {
     `java-library`
     `maven-publish`
 }
 
-apply<net.woggioni.plugins.multi.release.jar.MultiReleaseJarPlugin>()
-
 group = "net.woggioni"
 version = "0.1"
 

gradle/wrapper/gradle-wrapper.properties

@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-6.6.1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.0.2-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists