chore: ⬆️ upgrade flutter sdk and dependencies (#72)

Author: moazelsawaf

pubspec.yaml

@@ -7,18 +7,19 @@ issue_tracker: https://github.com/aissat/easy_localization_loader/issues
 version: 2.0.2
 
 environment:
-  sdk: '>=2.12.0 <4.0.0'
+  sdk: '>=3.4.0 <4.0.0'
 
 dependencies:
+  flutter:
+    sdk: flutter
   connectivity_plus: ^6.0.3
   csv: ^6.0.0
   easy_localization: ^3.0.7
-  flutter: { sdk: flutter }
-  http: ^1.1.0
-  path_provider: ^2.1.1
-  xml: ^6.1.0
-  yaml: ^3.1.1
+  http: ^1.2.2
+  path_provider: ^2.1.3
+  xml: ^6.5.0
+  yaml: ^3.1.2
 
 dev_dependencies:
-  pedantic: ^1.11.1
-  test: ^1.21.6
+  lints: ^4.0.0
+  test: ^1.25.2