fix(deps): update dependency grpc to v1.22.2

Author: renovate-bot

package-lock.json

@@ -57,7 +57,7 @@
     "fastify-formbody": "3.1.0",
     "fastify-multipart": "1.0.1",
     "graphql": "14.4.2",
-    "grpc": "1.22.0",
+    "grpc": "1.22.2",
     "http2": "3.3.7",
     "iterare": "1.2.0",
     "merge-graphql-schemas": "1.5.8",

package.json

@@ -17,7 +17,7 @@
     "@nestjs/testing": "6.5.2",
     "class-transformer": "0.2.3",
     "class-validator": "0.9.1",
-    "grpc": "1.22.0",
+    "grpc": "1.22.2",
     "reflect-metadata": "0.1.13",
     "rxjs": "6.5.2",
     "typescript": "3.5.3"