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

@@ -52,7 +52,7 @@
     "debug": "^4.4.1",
     "express": "^4.21.2",
     "graphql": "^16.11.0",
-    "graphql-subscriptions": "^2.0.0",
+    "graphql-subscriptions": "^3.0.0",
     "graphql-ws": "^5.16.2",
     "type-graphql": "^2.0.0-beta.2",
     "ws": "^8.18.3"