[Bug] fail to install Kruise rollout in customized namespace

[StevenLeiZhang]

reproduce procedure

1. install it

   helm install  krollout ./kruise-rollout --set installation.namespace=myroll --set image.pullPolicy="IfNotPresent" 

2. check status

the pod can not be up due to below error:

   - lastTransitionTime: "2022-12-31T09:37:58Z"                                                                                                                                                                          │
│     lastUpdateTime: "2022-12-31T09:37:58Z"                                                                                                                                                                              │
│     message: 'pods "kruise-rollout-controller-manager-9868d969b-" is forbidden: error                                                                                                                                   │
│       looking up service account myroll/kruise-rollout-controller-manager: serviceaccount                                                                                                                               │
│       "kruise-rollout-controller-manager" not found'                                                                                                                                                                    │
│     reason: FailedCreate                                                                                                                                                                                                │
│     status: "True"                                                                                                                                                                                                      │
│     type: ReplicaFailure    

[StevenLeiZhang]

/assign