chore(deps): update dependency graphql-subscriptions to v2

Author: renovate-bot

package-lock.json

@@ -49,7 +49,7 @@
     "eslint-config-prettier": "8.3.0",
     "eslint-plugin-import": "2.25.2",
     "graphql": "15.7.2",
-    "graphql-subscriptions": "1.2.1",
+    "graphql-subscriptions": "2.0.0",
     "husky": "7.0.4",
     "jest": "27.3.1",
     "lint-staged": "11.2.6",