chore(release): bump version to 11.1.2 and update intl dependency range

Author: Michelle Raouf

pubspec.yaml

@@ -1,6 +1,6 @@
 name: form_builder_validators
 description: Form Builder Validators set of validators for FlutterFormBuilder. Provides common validators and a way to make your own.
-version: 11.1.1
+version: 11.1.2
 repository: https://github.com/flutter-form-builder-ecosystem/form_builder_validators
 issue_tracker: https://github.com/flutter-form-builder-ecosystem/form_builder_validators/issues
 homepage: https://github.com/flutter-form-builder-ecosystem
@@ -19,7 +19,7 @@ dependencies:
     sdk: flutter
   flutter_localizations:
     sdk: flutter
-  intl: ^0.19.0
+  intl: '>=0.19.0 <0.21.0'
 
 dev_dependencies:
   faker_dart: ^0.2.2