Fix format of cert password for env custom domain (Azure#21461)

* fix

* fix

Author: Juliehzl

specification/app/resource-manager/Microsoft.App/preview/2022-06-01-preview/CommonDefinitions.json

@@ -317,7 +317,6 @@
           "x-ms-secret": true
         },
         "certificatePassword": {
-          "format": "byte",
           "description": "Certificate password",
           "type": "string",
           "x-ms-secret": true

specification/app/resource-manager/Microsoft.App/preview/2022-06-01-preview/examples/Certificate_CreateOrUpdate.json

@@ -9,7 +9,7 @@
       "location": "East US",
       "properties": {
         "password": "private key password",
-        "value": "PFX-or-PEM-blob"
+        "value": "Y2VydA=="
       }
     }
   },

specification/app/resource-manager/Microsoft.App/preview/2022-06-01-preview/examples/ContainerApps_GetAuthToken.json

@@ -3,7 +3,7 @@
     "subscriptionId": "651f8027-33e8-4ec4-97b4-f6e9f3dc8744",
     "resourceGroupName": "rg",
     "containerAppName": "testcontainerApp0",
-    "api-version": "2022-05-01"
+    "api-version": "2022-06-01-preview"
   },
   "responses": {
     "200": {

specification/app/resource-manager/Microsoft.App/preview/2022-06-01-preview/examples/ManagedEnvironments_CreateOrUpdate.json

@@ -26,7 +26,7 @@
         },
         "customDomainConfiguration": {
           "dnsSuffix": "www.my-name.com",
-          "certificateValue": "PFX-or-PEM-blob",
+          "certificateValue": "Y2VydA==",
           "certificatePassword": "private key password"
         },
         "workloadProfiles": [

specification/app/resource-manager/Microsoft.App/preview/2022-06-01-preview/examples/ManagedEnvironments_Delete.json

@@ -8,7 +8,11 @@
   },
   "responses": {
     "200": {},
-    "202": {},
+    "202": {
+      "headers": {
+        "location": "https://management.azure.com/subscriptions/34adfa4f-cedf-4dc0-ba29-b6d1a69ab345/providers/Microsoft.App/localtions/eastus/operationResults/00000"
+      }
+    },
     "204": {}
   }
 }

specification/app/resource-manager/Microsoft.App/preview/2022-06-01-preview/examples/ManagedEnvironments_GetAuthToken.json

@@ -3,7 +3,7 @@
     "subscriptionId": "651f8027-33e8-4ec4-97b4-f6e9f3dc8744",
     "resourceGroupName": "rg",
     "environmentName": "testenv",
-    "api-version": "2022-05-01"
+    "api-version": "2022-06-01-preview"
   },
   "responses": {
     "200": {