chore: update dependency graphql-subscriptions to v3

Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

extensions/graphql/package.json

@@ -49,7 +49,7 @@
     "debug": "^4.4.0",
     "express": "^4.21.2",
     "graphql": "^15.10.1",
-    "graphql-subscriptions": "^2.0.0",
+    "graphql-subscriptions": "^3.0.0",
     "type-graphql": "^1.1.1"
   },
   "devDependencies": {