build: update kotlin, cleanup

Change-Id: Ie6459e9ab5f9c781b8b9d67d4541143b6709b64b

ring-android/app/build.gradle.kts

@@ -29,19 +29,14 @@ android {
     }
 
     buildTypes {
-        getByName("debug") {
+        debug {
             isDebuggable = true
             proguardFiles(getDefaultProguardFile("proguard-android.txt"), "proguard-rules.pro")
-
             packagingOptions {
-                doNotStrip("*/armeabi/*.so")
-                doNotStrip("*/armeabi-v7a/*.so")
-                doNotStrip("*/arm64-v8a/*.so")
-                doNotStrip("*/x86/*.so")
-                doNotStrip("*/x86_64/*.so")
+                jniLibs.keepDebugSymbols += "**/*.so"
             }
         }
-        getByName("release") {
+        release {
             isMinifyEnabled = true
             proguardFiles(getDefaultProguardFile("proguard-android-optimize.txt"), "proguard-rules.pro")
         }

ring-android/build.gradle.kts

@@ -5,7 +5,7 @@ buildscript {
         mavenCentral()
     }
 
-    val kotlin_version by extra { "1.6.0" }
+    val kotlin_version by extra { "1.6.10" }
     val hilt_version by extra { "2.40.5" }
 
     dependencies {