android: update native dependencies

android/app/build.gradle

 dependencies {
     implementation fileTree(dir: 'libs', include: ['*.jar'])
     implementation 'androidx.legacy:legacy-support-v4:1.0.0'
-    implementation 'androidx.appcompat:appcompat:1.0.2'
+    implementation 'androidx.appcompat:appcompat:1.1.0'
+
+    debugImplementation 'com.squareup.leakcanary:leakcanary-android:2.0-beta-5'
 
     if (!rootProject.ext.libreBuild) {
         implementation 'com.google.android.gms:play-services-auth:16.0.1'
     }
 
     implementation project(':sdk')
-
-    debugImplementation 'com.squareup.leakcanary:leakcanary-android:1.6.1'
-    releaseImplementation 'com.squareup.leakcanary:leakcanary-android-no-op:1.6.1'
 }
 
 gradle.projectsEvaluated {

android/app/src/main/AndroidManifest.xml

       android:allowBackup="true"
       android:icon="@mipmap/ic_launcher"
       android:label="@string/app_name"
-      android:name=".MainApplication"
       android:networkSecurityConfig="@xml/network_security_config"
       android:theme="@style/AppTheme">
     <activity

android/app/src/main/java/org/jitsi/meet/MainApplication.java

-/*
- * Copyright @ 2018-present Atlassian Pty Ltd
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.jitsi.meet;
-
-import android.app.Application;
-
-import com.squareup.leakcanary.LeakCanary;
-
-/**
- * Simple {@link Application} for hooking up LeakCanary:
- * https://github.com/square/leakcanary
- */
-public class MainApplication extends Application {
-    @Override
-    public void onCreate() {
-        super.onCreate();
-
-        if (!LeakCanary.isInAnalyzerProcess(this)) {
-            LeakCanary.install(this);
-        }
-    }
-}

android/build.gradle

     }
     dependencies {
         classpath 'com.android.tools.build:gradle:3.3.2'
-        classpath 'com.google.gms:google-services:4.2.0'
-        classpath 'io.fabric.tools:gradle:1.27.0'
+        classpath 'com.google.gms:google-services:4.3.3'
+        classpath 'io.fabric.tools:gradle:1.28.1'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files.

android/sdk/build.gradle

     implementation fileTree(dir: 'libs', include: ['*.jar'])
 
     implementation 'androidx.legacy:legacy-support-v4:1.0.0'
-    implementation 'androidx.appcompat:appcompat:1.0.2'
-    implementation 'androidx.fragment:fragment:1.0.0'
+    implementation 'androidx.appcompat:appcompat:1.1.0'
+    implementation 'androidx.fragment:fragment:1.1.0'
 
+    //noinspection GradleDynamicVersion
     api 'com.facebook.react:react-native:+'
+    //noinspection GradleDynamicVersion
     implementation 'org.webkit:android-jsc:+'
 
     implementation 'com.dropbox.core:dropbox-core-sdk:3.0.8'