fix: resolve TypeError when using --cookie-browsers CLI argument

Co-authored-by: hlohaus <983577+hlohaus@users.noreply.github.com>

Author: Copilot

g4f/cli/__init__.py

@@ -221,7 +221,7 @@ def run_api_args(args):
 
     # Custom cookie browsers
     if args.cookie_browsers:
-        cookies.BROWSERS = [cookies[b] for b in args.cookie_browsers]
+        cookies.BROWSERS = [b for b in cookies.BROWSERS if b.__name__ in args.cookie_browsers]
 
     # Allow overriding the cookies directory from CLI
     if getattr(args, "cookies_dir", None):