⬆️ Constraint dart_style v3 which also bumps the SDK constraint to 3.4

Author: AlexV525

examples/example/pubspec.yaml

@@ -3,8 +3,7 @@ description: A sample project using FlutterGen.
 publish_to: 'none'
 
 environment:
-  sdk: '>=3.2.0 <4.0.0'
-  flutter: '>=3.16.0'
+  sdk: ^3.4.0
 
 dependencies:
   flutter:

examples/example_resources/pubspec.yaml

@@ -3,8 +3,7 @@ description: A sample project using FlutterGen.
 publish_to: 'none'
 
 environment:
-  sdk: '>=3.2.0 <4.0.0'
-  flutter: '>=3.16.0'
+  sdk: ^3.4.0
 
 dependencies:
   flutter:

packages/command/pubspec.yaml

@@ -7,7 +7,7 @@ documentation: https://github.com/FlutterGen/flutter_gen
 issue_tracker: https://github.com/FlutterGen/flutter_gen/issues
 
 environment:
-  sdk: ^3.0.0
+  sdk: ^3.4.0
 
 executables:
   fluttergen: flutter_gen_command

packages/core/pubspec.yaml

@@ -7,7 +7,7 @@ documentation: https://github.com/FlutterGen/flutter_gen
 issue_tracker: https://github.com/FlutterGen/flutter_gen/issues
 
 environment:
-  sdk: ^3.0.0
+  sdk: ^3.4.0
 
 version_gen:
   path: lib/
@@ -24,7 +24,7 @@ dependencies:
   json_annotation: ^4.4.0
   glob: ^2.0.0
 
-  dart_style: '>=2.3.7 <4.0.0'
+  dart_style: ^3.0.0
   archive: '>=3.4.0 <5.0.0'
   args: ^2.0.0
   pub_semver: ^2.0.0

packages/runner/lib/flutter_gen_runner.dart

@@ -37,7 +37,7 @@ class FlutterGenBuilder extends Builder {
     if (_config == null) {
       return;
     }
-    final state = await _createState(_config!, buildStep);
+    final state = await _createState(_config, buildStep);
     if (state.shouldSkipGenerate(_currentState)) {
       return;
     }
@@ -56,7 +56,7 @@ class FlutterGenBuilder extends Builder {
     if (_config == null) {
       return {};
     }
-    final output = _config!.pubspec.flutterGen.output;
+    final output = _config.pubspec.flutterGen.output;
     return {
       r'$package$': [
         for (final name in [

packages/runner/pubspec.yaml

@@ -7,7 +7,7 @@ documentation: https://github.com/FlutterGen/flutter_gen
 issue_tracker: https://github.com/FlutterGen/flutter_gen/issues
 
 environment:
-  sdk: ^3.0.0
+  sdk: ^3.4.0
 
 dependencies:
   flutter_gen_core: 5.10.0

pubspec.yaml

@@ -1,7 +1,7 @@
 name: flutter_gen_repository
 
 environment:
-  sdk: ^3.0.0
+  sdk: ^3.4.0
 
 dev_dependencies:
   lints: any # Ignoring the version to allow editing across SDK versions.