feat(firebaseml): update the API

#### firebaseml:v1beta2
The following keys were added:
- schemas.TfLiteModel.properties.managedUpload.description
- schemas.TfLiteModel.properties.managedUpload.type

discovery/firebaseml-v1beta2.json

@@ -296,7 +296,7 @@
       }
     }
   },
-  "revision": "20200509",
+  "revision": "20200722",
   "rootUrl": "https://firebaseml.googleapis.com/",
   "schemas": {
     "Empty": {
@@ -487,6 +487,10 @@
           "description": "The TfLite file containing the model. (Stored in Google Cloud).\nThe gcs_tflite_uri should have form: gs://some-bucket/some-model.tflite\nNote: If you update the file in the original location, it is\nnecessary to call UpdateModel for ML to pick up and validate the\nupdated file.",
           "type": "string"
         },
+        "managedUpload": {
+          "description": "Output only. A boolean indicating that this model was uploaded from the console.\nRead only",
+          "type": "boolean"
+        },
         "sizeBytes": {
           "description": "Output only. The size of the TFLite model",
           "type": "string"

src/apis/firebaseml/v1beta2.ts

@@ -262,6 +262,10 @@ export namespace firebaseml_v1beta2 {
      * The TfLite file containing the model. (Stored in Google Cloud). The gcs_tflite_uri should have form: gs://some-bucket/some-model.tflite Note: If you update the file in the original location, it is necessary to call UpdateModel for ML to pick up and validate the updated file.
      */
     gcsTfliteUri?: string | null;
+    /**
+     * Output only. A boolean indicating that this model was uploaded from the console. Read only
+     */
+    managedUpload?: boolean | null;
     /**
      * Output only. The size of the TFLite model
      */