feat: add agents and agent runs [PIC-829] (#2401)

* feat: add agents and agent runs

* fix: update contentful-management dependency to version 11.67.0

Author: elliotmassen

lib/types/cmaClient.types.ts

@@ -1,6 +1,8 @@
 import { PlainClientAPI } from 'contentful-management'
 
 export type CMAClient = {
+  agent: Pick<PlainClientAPI['agent'], 'get' | 'getMany' | 'generate'>
+  agentRun: Pick<PlainClientAPI['agentRun'], 'get' | 'getMany'>
   appAction: Pick<PlainClientAPI['appAction'], 'get' | 'getMany' | 'getManyForEnvironment'>
   appActionCall: Pick<
     PlainClientAPI['appActionCall'],