chore: mark commad as beta

Author: WillieRuemmele

src/commands/agent/generate/authoring-bundle.ts

@@ -36,6 +36,7 @@ export default class AgentGenerateAuthoringBundle extends SfCommand<AgentGenerat
   public static readonly description = messages.getMessage('description');
   public static readonly examples = messages.getMessages('examples');
   public static readonly requiresProject = true;
+  public static state = 'beta';
 
   public static readonly flags = {
     'target-org': Flags.requiredOrg(),