Enalbe new modelvalidation run in pre-production. (#7168)

Author: raych1

.azure-pipelines-preproduction/package-lock.json

@@ -11,7 +11,7 @@
   "license": "MIT",
   "devDependencies": {
     "@azure/avocado": "^0.6.0",
-    "@azure/rest-api-specs-scripts": "^0.5.0",
+    "@azure/rest-api-specs-scripts": "^0.5.1",
     "@ts-common/commonmark-to-markdown": "^1.2.0",
     "@ts-common/fs": "0.2.0",
     "@ts-common/iterator": "^0.3.6",

.azure-pipelines-preproduction/package.json

@@ -16,3 +16,4 @@ jobs:
 - template: .azure-pipelines/BranchProtectionForPrivateRepo.yml
 - template: .azure-pipelines/Spellcheck.yml
 - template: .azure-pipelines/BreakingChange.yml
+- template: .azure-pipelines/ModelValidation.yml