Update azure-pipelines.yml

Author: tmat

azure-pipelines.yml

@@ -51,7 +51,7 @@ stages:
           - name: _OfficialBuildArgs
             value: /p:DotNetSignType=$(_SignType)
                    /p:TeamName=$(_TeamName)
-                   /p:PublishUsingPipelines=true
+                   /p:DotNetPublishUsingPipelines=true
                    /p:OfficialBuildId=$(BUILD.BUILDNUMBER)
         # else
         - ${{ if or(eq(variables['System.TeamProject'], 'public'), in(variables['Build.Reason'], 'PullRequest')) }}: