PWX-37588 | Add missing fields for stork

[hitesh-wani-px]

What this PR does / why we need it: Add missing fields in Stork component for helm. Which issue(s) this PR fixes (optional) Closes #https://purestorage.atlassian.net/browse/PWX-37568

Special notes for your reviewer:

[hitesh-wani-px]

Testing Notes:

1. Enter all optional values for stork in values.yaml

   stork:                                
   enabled: true
   storkVersion: 2.7.0                      .
   lockImage: false                              
   args: verbose=true;webhook-controller=true                          
   volumes:                            
   - name: "px-test-volume"
   mountPath: /etc/px-test
   hostPath:
     path: /test
   env:                               
   - name: PX_TEST_ENV
   value: "test_env_autopilot"

2. Install PX using helm

   helm install my-release --set internalKVDB=true,clusterName=$(uuidgen) ./charts/portworx/ -n portworx --debug

3. The generated storageCluster template should incorporate all specified values.

   # Source: portworx/templates/storage-cluster.yaml
   kind: StorageCluster
   apiVersion: core.libopenstorage.org/v1
   metadata:
   name: "e6d805db-dcc3-4b0d-91a4-d65ced4208d1"
   namespace: portworx
   annotations:
   labels:
   heritage: "Helm"
   release: "my-release"
   chart: "portworx-3.1.0"
   app.kubernetes.io/managed-by: "Helm"
   app.kubernetes.io/instance: "my-release"
   spec:
   image: portworx/oci-monitor:3.1.0
   imagePullPolicy: Always
   
   kvdb:
   internal: true
   storage:
   useAll: true
   secretsProvider: k8s
   
   env:
   - name: PX_SECRETS_NAMESPACE
   value: portworx
   
   stork:
   enabled: true
   image: openstorage/stork:2.7.0                      .
   env:
   - name: PX_TEST_ENV
     value: test_env_autopilot
   volumes:
   - hostPath:
       path: /test
     mountPath: /etc/px-test
     name: px-test-volume
   args:
     verbose: "true"
     webhook-controller: "true"
   csi:
   enabled: false

4. We should be able to see the following configurations reflected on the cluster:
   1. stork and stork-scheduler pods should be deployed and running.
   2. stork pod should have same image as we mentioned in the storkVersion
   3. stork pod should have appended args passed stork.args

      containers:
      - command:
      - /stork
      - --driver=pxd
      - --health-monitor-interval=120
      - --leader-elect=true
      - --lock-object-namespace=portworx
      - --verbose=true
      - --webhook-controller=true

5. We should be able to see the environment variables and volumes specified in stork.env and stork.volumes reflected in the Autopilot pod.

Unit test cases Results:

--- PASS: TestStorageClusterHelmTemplate (0.00s)
    --- PASS: TestStorageClusterHelmTemplate/TestDefaultChartValues (0.07s)
    --- PASS: TestStorageClusterHelmTemplate/TestCustomRegistry (0.07s)
    --- PASS: TestStorageClusterHelmTemplate/TestStork (0.07s)
    --- PASS: TestStorageClusterHelmTemplate/TestAllComponentsEnabled (0.07s)
    --- PASS: TestStorageClusterHelmTemplate/TestExternalETCD (0.07s)
    --- PASS: TestStorageClusterHelmTemplate/TestPlacementTolerations (0.07s)
PASS
ok      github.com/portworx/helm/test/portworx  0.102s