Support latest rxdart version

Author: Carapacik

flutter_cache_manager/example/pubspec.yaml

@@ -3,21 +3,21 @@ description: A project that showcases usage of flutter_cache_manager
 publish_to: none
 version: 1.0.0+1
 environment:
-  sdk: '>=2.17.0 <4.0.0'
+  sdk: '>=3.0.0 <4.0.0'
 
 dependencies:
   baseflow_plugin_template: ^2.1.2
-  cupertino_icons: ^1.0.5
+  cupertino_icons: ^1.0.8
   flutter:
     sdk: flutter
   flutter_cache_manager:
     path: ../
-  url_launcher: ^6.1.10
+  url_launcher: ^6.3.0
 
 dev_dependencies:
   flutter_test:
     sdk: flutter
-  flutter_lints: ^2.0.1
+  flutter_lints: ^4.0.0
 
 flutter:
   uses-material-design: true

flutter_cache_manager/pubspec.yaml

@@ -6,7 +6,7 @@ topics:
   - cache
   - cache-manager
 environment:
-  sdk: '>=2.17.0 <4.0.0'
+  sdk: '>=3.0.0 <4.0.0'
 
 dependencies:
   clock: ^1.1.0
@@ -17,13 +17,13 @@ dependencies:
   http: ^1.2.1
   path: ^1.9.0
   path_provider: ^2.1.3
-  rxdart: ^0.27.7
+  rxdart: '>=0.27.7 <1.0.0'
   sqflite: ^2.3.3
   uuid: ^4.4.0
 
 dev_dependencies:
-  build_runner: ^2.0.0
-  flutter_lints: ^3.0.2
+  build_runner: ^2.4.11
+  flutter_lints: ^4.0.0
   flutter_test:
     sdk: flutter
-  mockito: ^5.0.0
+  mockito: ^5.4.4