Fix android builds

Author: renefloor

cached_network_image/README.md

@@ -8,9 +8,16 @@ A flutter library to show images from the internet and keep them in the cache di
 
 
 ## Sponsors
-<a href="https://getstream.io/chat/flutter/tutorial/?utm_source=github&utm_medium=github_rep[%E2%80%A6]&utm_content=Developer&utm_campaign=Github_Oct2021_FlutterChat" target="_blank"><img width="250px" src="https://stream-blog.s3.amazonaws.com/blog/wp-content/uploads/fc148f0fc75d02841d017bb36e14e388/Stream-logo-with-background-.png"/></a><br/><span><a href="https://getstream.io/chat/flutter/tutorial/?utm_source=github&utm_medium=github_rep[%E2%80%A6]&utm_content=Developer&utm_campaign=Github_Oct2021_FlutterChat" target="_blank">Try the Flutter Chat Tutorial 💬</a></span>
-
 
+<table>    
+    <tbody>
+        <tr>
+            <td align="center">
+                <a href="https://getstream.io/chat/flutter/tutorial/?utm_source=github&utm_medium=github_rep[%E2%80%A6]&utm_content=Developer&utm_campaign=Github_Oct2021_FlutterChat" target="_blank"><img width="250px" src="https://stream-blog.s3.amazonaws.com/blog/wp-content/uploads/fc148f0fc75d02841d017bb36e14e388/Stream-logo-with-background-.png"/></a><br/><span><a href="https://getstream.io/chat/flutter/tutorial/?utm_source=github&utm_medium=github_rep[%E2%80%A6]&utm_content=Developer&utm_campaign=Github_Oct2021_FlutterChat" target="_blank">Try the Flutter Chat Tutorial 💬</a></span>
+            </td>            
+        </tr>
+    </tbody>
+</table>
 
 ## How to use
 The CachedNetworkImage can be used directly or through the ImageProvider.

cached_network_image/example/android/build.gradle

@@ -6,7 +6,7 @@ buildscript {
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.5.0'
+        classpath 'com.android.tools.build:gradle:4.2.0'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
     }
 }

cached_network_image/example/android/gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,5 @@
-#Fri Jun 23 08:50:38 CEST 2017
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-5.6.2-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.9.1-all.zip