Pull azure-vnet-telemetry image from MCR (#416)

Author: jaer-tsun

npm/azure-npm.yaml

@@ -95,7 +95,7 @@ spec:
           - name: tmp
             mountPath: /tmp
         - name: azure-vnet-telemetry
-          image: containernetworking/azure-vnet-telemetry:v1.0.28
+          image: mcr.microsoft.com/containernetworking/azure-vnet-telemetry:v1.0.28
           volumeMounts:
           - name: socket-dir
             mountPath: /var/run