Fix compile errors in Flutter 3.0

Author: fzyzcjy

pubspec.yaml

@@ -10,7 +10,7 @@ environment:
   sdk: '>=2.12.0-0 <3.0.0'
 
 dependencies:
-  analyzer: '>=2.1.0 <4.0.0'
+  analyzer: '>=2.1.0 <5.0.0'
   build: '>=1.3.0 <3.0.0'
   code_builder: ^4.0.0
   collection: ^1.15.0