Merge pull request GoogleCloudPlatform#149 from dylanmpeck/patch-1

pin_tf_serving_image_2.8.0

Author: duygune

workshops/mlep-qwiklabs/tfserving-gke-autoscaling/tf-serving/deployment.yaml

@@ -31,7 +31,7 @@ spec:
     spec:
       containers:
       - name: tf-serving
-        image: "tensorflow/serving"
+        image: "tensorflow/serving:2.8.0"
         args: 
         - "--model_name=$(MODEL_NAME)"
         - "--model_base_path=$(MODEL_PATH)"