add subscriptions packages

Author: t.kosminov

package-lock.json

@@ -83,7 +83,9 @@
     "eslint": "^8.32.0",
     "eslint-config-prettier": "^8.6.0",
     "eslint-plugin-prettier": "^4.2.1",
+    "graphql-subscriptions": "^2.0.0",
     "graphql-tools": "^8.3.15",
+    "graphql-ws": "^5.11.2",
     "helmet": "^6.0.1",
     "husky": "^8.0.3",
     "nodemon": "^2.0.20",