Changed version

Author: FernandoCCNunes

MaterialDialogLibrary/build.gradle

@@ -2,7 +2,7 @@ apply plugin: 'com.android.library'
 apply plugin: 'com.github.dcendents.android-maven'
 apply plugin: "com.jfrog.bintray"
 
-version = "2.1"
+version = "2.4"
 
 android {
     compileSdkVersion 30