update Gradle plugin

build.gradle

@@ -8,7 +8,7 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:4.0.0'
+        classpath 'com.android.tools.build:gradle:4.0.1'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
         classpath "com.mikepenz.aboutlibraries.plugin:aboutlibraries-plugin:$about_libs_version"
 
@@ -25,6 +25,7 @@ allprojects {
         google()
         jcenter()
         maven { url 'https://jitpack.io' }
+        maven { url "http://oss.sonatype.org/content/repositories/snapshots/" }
         flatDir {
             dirs 'libs'
         }