Extended clean task for gradle script

app/build.gradle

@@ -35,3 +35,7 @@ dependencies {
     implementation 'com.github.bumptech.glide:glide:4.4.0'
     implementation(name: 'ulogin-sdk-v1.1', ext: 'aar')
 }
+
+clean {
+    delete 'release'
+}