updateAuth static method
Update auth in config
Implementation
static Future<void> updateAuth(AuthConfig auth) async {
final config = loadConfig() ?? CliConfig();
final updatedConfig = CliConfig(
auth: auth,
projects: config.projects,
supabaseUrl: config.supabaseUrl,
supabaseAnonKey: config.supabaseAnonKey,
);
await saveConfig(updatedConfig);
}