Update dependency com.android.tools.build:gradle to v3.6.4

README.md

@@ -1,8 +1,8 @@
-# Vikunja Cross-Platform app
+# Vikunja Cross-Plattform app
 
 [![Build Status](https://drone.kolaente.de/api/badges/vikunja/app/status.svg)](https://drone.kolaente.de/vikunja/app)
 [![License: MIT](https://img.shields.io/badge/License-MIT-blue.svg)](LICENSE)
 [![Download](https://img.shields.io/badge/download-v0.1-brightgreen.svg)](https://storage.kolaente.de/minio/vikunja-app/)
 [![TestFlight Beta](https://img.shields.io/badge/TestFlight-Beta-026CBB)](https://testflight.apple.com/join/KxOaAraq)
 
-Vikunja as Flutter cross-platform app.
+Vikunja as Flutter cross platform app.

android/build.gradle

@@ -6,7 +6,7 @@ buildscript {
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.1.2'
+        classpath 'com.android.tools.build:gradle:3.6.4'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
     }
 }