[BUG] Required value for terminationPolicy lost when generating yaml by helm template

[tianyue86]

Describe the bug
A clear and concise description of what the bug is.

To Reproduce
Steps to reproduce the behavior:

1. Get the latest 1.0 redis cluster yaml by helm template

tianyue@192 kbcli % helm template redisclu02 kubeblocks-addons/redis-cluster --version 1.0.0-alpha.0
---
# Source: redis-cluster/templates/rbac.yaml
apiVersion: v1
kind: ServiceAccount
metadata:
  name: kb-redisclu02
  namespace: default
  labels:
    helm.sh/chart: redis-cluster-1.0.0-alpha.0
    app.kubernetes.io/version: "7.2.4"
    app.kubernetes.io/instance: redisclu02
---
# Source: redis-cluster/templates/rbac.yaml
apiVersion: rbac.authorization.k8s.io/v1
kind: RoleBinding
metadata:
  name: kb-redisclu02
  labels:
    helm.sh/chart: redis-cluster-1.0.0-alpha.0
    app.kubernetes.io/version: "7.2.4"
    app.kubernetes.io/instance: redisclu02
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: kubeblocks-cluster-pod-role
subjects:
  - kind: ServiceAccount
    name: kb-redisclu02
    namespace: default
---
# Source: redis-cluster/templates/cluster.yaml
apiVersion: apps.kubeblocks.io/v1
kind: Cluster
metadata:
  name: redisclu02
  namespace: default
  labels: 
    helm.sh/chart: redis-cluster-1.0.0-alpha.0
    app.kubernetes.io/version: "7.2.4"
    app.kubernetes.io/instance: redisclu02
spec:
  terminationPolicy: 
  clusterDef: redis
  topology: replication
  componentSpecs:  
  - name: redis  
    replicas: 2  
    disableExporter: false
    serviceAccountName: kb-redisclu02  
    resources:
      limits:
        cpu: "0.5"
        memory: "0.5Gi"
      requests:
        cpu: "0.5"
        memory: "0.5Gi"  
    volumeClaimTemplates:
      - name: data # ref clusterDefinition components.containers.volumeMounts.name
        spec:
          accessModes:
            - ReadWriteOnce
          resources:
            requests:
              storage: 20Gi  
  - name: redis-sentinel
    replicas: 3
    serviceAccountName: kb-redisclu02
    resources:
      limits:
        cpu: "0.2"
        memory:  "0.2Gi"
      requests:
        cpu: "0.2"
        memory:  "0.2Gi"
    volumeClaimTemplates:
      - name: data
        spec:
          accessModes:
            - ReadWriteOnce
          resources:
            requests:
              storage: 20Gi

2. Apply the yaml to create cluster

* spec.terminationPolicy: Required value
* <nil>: Invalid value: "null": some validation rules were not checked because the object was invalid; correct the existing errors to complete validation

---- mongodb has the same problem, please fix them together.

[tianyue86]

Fixed.