gRPC migration update

Change-Id: Icdd1a824948fa994cd36bd121c962f5ecf74e3cf
diff --git a/vendor/github.com/json-iterator/go/iter_float.go b/vendor/github.com/json-iterator/go/iter_float.go
index b975463..8a3d8b6 100644
--- a/vendor/github.com/json-iterator/go/iter_float.go
+++ b/vendor/github.com/json-iterator/go/iter_float.go
@@ -288,6 +288,9 @@
 				return iter.readFloat64SlowPath()
 			}
 			value = (value << 3) + (value << 1) + uint64(ind)
+			if value > maxFloat64 {
+				return iter.readFloat64SlowPath()
+			}
 		}
 	}
 	return iter.readFloat64SlowPath()