fix: release number

Author: deandreamatias

pubspec.yaml

@@ -1,6 +1,6 @@
 name: form_builder_extra_fields
 description: Additional ready-made form input fields for flutter_form_builder package
-version: 12.2.0
+version: 12.0.0
 homepage: https://github.com/flutter-form-builder-ecosystem
 repository: https://github.com/flutter-form-builder-ecosystem/form_builder_extra_fields
 issue_tracker: https://github.com/flutter-form-builder-ecosystem/form_builder_extra_fields/issues