upgrade to gradle 7.2.2

android/app/build.gradle

@@ -66,7 +66,6 @@ android {
             // TODO: Add your own signing config for the release build.
             // Signing with the debug keys for now, so `flutter run --release` works.
             signingConfig signingConfigs.release //poka: comment this to build unsigned release, or set to signingConfigs.debug to sign with debug keys
-            useProguard true
 
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' 
         }

android/build.gradle

@@ -1,12 +1,12 @@
 buildscript {
-    ext.kotlin_version = '1.6.10'
+    ext.kotlin_version = '1.7.10'
     repositories {
         google()
         jcenter()
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:4.0.1'
+        classpath 'com.android.tools.build:gradle:7.2.2'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
     }
 }

android/gradle.properties

@@ -1,5 +1,3 @@
 org.gradle.jvmargs=-Xmx1536M
 android.useAndroidX=true
 android.enableJetifier=true
-android.enableR8=true
-android.jetifier.blacklist=bcprov-jdk15on

android/gradle/wrapper/gradle-wrapper.properties

@@ -3,4 +3,5 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-6.1.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.3.3-all.zip
+