Upgraded dependency major versions (#27)

Author: github-actions[bot]

vrchat_dart/example/pubspec.yaml

@@ -11,7 +11,7 @@ dependencies:
   otp: ^3.1.3
 
 dev_dependencies:
-  rexios_lints: ^8.1.0
+  rexios_lints: ^9.1.0
 
 dependency_overrides:
   vrchat_dart_generated:

vrchat_dart/example_flutter/pubspec.yaml

@@ -15,7 +15,7 @@ dependencies:
   package_info_plus: ^8.0.0
 
 dev_dependencies:
-  rexios_lints: ^8.1.0
+  rexios_lints: ^9.1.0
 
 dependency_overrides:
   vrchat_dart_generated:

vrchat_dart/pubspec.yaml

@@ -16,7 +16,7 @@ dependencies:
   dio_response_validator: ^0.2.1
 
 dev_dependencies:
-  rexios_lints: ^8.1.0
+  rexios_lints: ^9.1.0
   build_runner: ^2.0.6
   json_serializable: ^6.0.1
   yaml: ^3.1.1