Removed unnecessary async keywords. Use own fork for proxies to support PAC files on android.

Author: RandomModderJDK

pubspec.yaml

@@ -16,7 +16,7 @@ publish_to: 'none' # Remove this line if you wish to publish to pub.dev
 # https://developer.apple.com/library/archive/documentation/General/Reference/InfoPlistKeyReference/Articles/CoreFoundationKeys.html
 # In Windows, build-name is used as the major, minor, and patch parts
 # of the product and file versions while build-number is used as the build suffix.
-version: 1.5.2
+version: 1.5.3
 
 environment:
  sdk: '>=3.0.0 <4.0.0'