updates google_api_headers dependency

pubspec.yaml

@@ -1,24 +1,24 @@
 name: flutter_google_places
 description: Google places autocomplete widgets for flutter. No wrapper, use https://pub.dev/packages/google_maps_webservice
-version: 0.4.0
+version: 0.5.0
 repository: https://github.com/fluttercommunity/flutter_google_places
 
 environment:
-  sdk: '>=2.12.0 <3.0.0'
+  sdk: '>=2.12.0 <4.0.0'
   flutter: ">=1.17.0"
 
 dependencies:
   flutter:
     sdk: flutter
-  google_api_headers: ^1.3.0
+  google_api_headers: ^3.8.0
   google_maps_webservice: ^0.0.20-nullsafety.5
   http: ^0.13.4
-  rxdart: ^0.27.5
+  rxdart: ^0.27.7
 
 dev_dependencies:
   flutter_test:
     sdk: flutter
-  lint: ^1.10.0
+  lint: ^2.3.0
 
 flutter:
   assets: