docs(samples): remove k8s Secret from alm-examples and use stringData in docs (#345)

Author: freeznet

config/samples/resource_v1alpha1_streamnativecloudconnection.yaml

@@ -23,19 +23,3 @@ spec:
     credentialsRef:
       name: test-credentials
   organization: org
----
-apiVersion: v1
-kind: Secret
-metadata:
-  name: test-credentials
-  namespace: default
-type: Opaque
-data:
-  credentials.json: |
-    {
-      "type": "sn_service_account",
-      "client_secret": "client_secret",
-      "client_email": "client-email",
-      "issuer_url": "issuer_url",
-      "client_id": "client-id"
-    }

docs/streamnative_cloud_connection.md

@@ -48,7 +48,7 @@ metadata:
   name: test-credentials
   namespace: default
 type: Opaque
-data:
+stringData:
   credentials.json: |
     {
       "type": "sn_service_account",
@@ -112,4 +112,4 @@ To delete a StreamNativeCloudConnection resource:
 kubectl delete streamnativecloudconnection test-connection
 ```
 
-Note that deleting the connection will affect any resources that depend on it, such as ComputeWorkspaces or ComputeFlinkDeployments.
+Note that deleting the connection will affect any resources that depend on it, such as ComputeWorkspaces or ComputeFlinkDeployments.