I have a CRD definition which have a corev1.PodSpec type objectembedded. But the validation of the CRD fails when customresource is created. Following is the CRD

apiVersion: apiextensions.k8s.io/v1beta1
kind: CustomResourceDefinition
metadata:
  name: crdtest.test.com
  namespace: crdtestns
spec:
  group: test.com
  names:
    kind: crdtest
    listKind: crdtestlist
    plural: crdtests
    singular: crdtest
  scope: Namespaced
  subresources:
    status: {}
  validation:
    openAPIV3Schema:
      description: CRDTest is the Schema for the crdtests API
      properties:
        apiVersion:
          description: 'APIVersion defines the versioned schema of this representation
            of an object. Servers should convert recognized schemas to the latest
            internal value, and may reject unrecognized values. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#resources'
          type: string
        kind:
          description: 'Kind is a string value representing the REST resource this
            object represents. Servers may infer this from the endpoint the client
            submits requests to. Cannot be updated. In CamelCase. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds'
          type: string
        metadata:
          type: object
        spec:
          description: CrdtestSpec defines the desired state of Crdtest
          type: object
          properties:
            image:
              type: string
            count:
              type: integer
              minimum: 0
            testarray:
              type: array
              items:
                type: object
                properties:
                  name:
                    type: string
                  spec:
                    type: PodSpec
                required: ["name", "spec"]
          required: ["image", "count", "testarray"]
        status:
          description: CrdTestStatus defines the observed state of Crdtest
          type: object
      type: object
      required: ["spec"]
  version: v1alpha1
  versions:
  - name: v1alpha1
  - name: v1alpha1
    served: true
    storage: true

Applying the below CR gives error spec.testarray.spec in body must be of type PodSpec: "object"-

apiVersion: test.com/v1alpha1
kind: crdtest
metadata:
 name: crdtest-operator
 namespace: crdtestns
spec:
 image: tst/test:v2.1
 count: 2
 testarray:
 - name: item1
   spec:
       containers:
       - name: test-con
         image: testcon/test:v5.17

How can i validate the PodSpec object in customresource.