fix(ci): remove resolution: workspace from committed pubspec

Was accidentally committed with --no-verify, breaks standalone CI.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: tsavo-at-pieces

pubspec.yaml

@@ -5,8 +5,6 @@ repository: https://github.com/open-runtime/dart_cli_script
 environment:
   sdk: ^3.9.0
 
-resolution: workspace
-
 dependencies:
   async: ^2.13.0
   charcode: ^1.4.0