Add the building task to the stage Relase latest (#636)

Author: ivanduplenskikh

azure-pipelines.yml

@@ -80,6 +80,13 @@ extends:
           inputs:
             versionSpec: 16.x
           displayName: Install node
+        - task: NpmAuthenticate@0
+          inputs:
+            workingFile: .npmrc
+        - script: npm install
+          displayName: npm install
+        - script: npm run build
+          displayName: npm run build
         - bash: |
             package_name=$(npm pkg get name version | jq -r '"\(.name)@\(.version)"')
             echo "##vso[task.setvariable variable=npm_package]$package_name"