fix(deps): update dependency @grpc/proto-loader to ^0.7.0

Author: renovate-bot

mock-server/package.json

@@ -2,7 +2,7 @@
   "name": "grpc-examples",
   "version": "0.1.0",
   "dependencies": {
-    "@grpc/proto-loader": "^0.5.0",
+    "@grpc/proto-loader": "^0.7.0",
     "async": "^1.5.2",
     "google-protobuf": "^3.0.0",
     "@grpc/grpc-js": "^1.1.0",