Merge pull request notadd#416 from notadd/renovate/master-nestjs-graphql-6.x

fix(deps): update dependency @nestjs/graphql to v6 (master)

Author: zuohuadong

package.json

@@ -20,7 +20,7 @@
     "@grpc/proto-loader": "0.5.0",
     "@nestjs/common": "5.7.4",
     "@nestjs/core": "5.7.4",
-    "@nestjs/graphql": "5.5.7",
+    "@nestjs/graphql": "6.2.1",
     "@nestjs/microservices": "5.7.4",
     "apollo-server-express": "2.5.0",
     "graphql": "14.3.0",