fix: downgrade kotlin from 1.9.20 to 1.6.0

Author: leotm

android/gradle.properties

@@ -1,4 +1,4 @@
-ReactNativeWebView_kotlinVersion=1.9.20
+ReactNativeWebView_kotlinVersion=1.6.0
 ReactNativeWebView_webkitVersion=1.4.0
 ReactNativeWebView_compileSdkVersion=31
 ReactNativeWebView_targetSdkVersion=31

example/android/build.gradle

@@ -8,14 +8,14 @@ buildscript {
     }
 
     dependencies {
-        classpath("org.jetbrains.kotlin:kotlin-gradle-plugin:1.9.20")
+        classpath("org.jetbrains.kotlin:kotlin-gradle-plugin:1.6.0")
         classpath("com.android.tools.build:gradle:7.0.4")
         getReactNativeDependencies().each { dependency ->
             classpath(dependency)
         }
     }
-    ext.kotlinVersion = "1.9.20"
+    ext.kotlinVersion = "1.6.0"
 }
 dependencies {
-    implementation "org.jetbrains.kotlin:kotlin-stdlib:1.9.20"
+    implementation "org.jetbrains.kotlin:kotlin-stdlib:1.6.0"
 }

example/android/gradle.properties

@@ -42,4 +42,4 @@ newArchEnabled=false
 #ANDROID_NDK_VERSION=21.4.7075529
 
 # Version of Kotlin to build against.
-KOTLIN_VERSION=1.9.20
+KOTLIN_VERSION=1.6.0