chore: pin the version of the socket.io-adapter package

- `socket.io@latest` depends on `socket.io-adapter@~2.4.0`, which resolves to `socket.io-adapter@2.4.0`
- `@socket.io/redis-adapter@latest` depends on `socket.io-adapter@^2.4.0`, which resolves to `socket.io-adapter@2.5.1` (released a few days ago)

Typescript complains that the two types do not match:

> Argument of type '(nsp: any) => RedisAdapter' is not assignable to parameter of type 'AdapterConstructor'.
>  Type '(nsp: any) => RedisAdapter' is not assignable to type '(nsp: Namespace<DefaultEventsMap, DefaultEventsMap, DefaultEventsMap, any>) => Adapter'.
>    Type 'RedisAdapter' is not assignable to type 'Adapter'.
>      Types have separate declarations of a private property 'encoder'.

Related:

- #478
- #482

Author: darrachequesne

package-lock.json

@@ -25,7 +25,7 @@
   "dependencies": {
     "debug": "~4.3.1",
     "notepack.io": "~3.0.1",
-    "socket.io-adapter": "^2.4.0",
+    "socket.io-adapter": "~2.4.0",
     "uid2": "1.0.0"
   },
   "devDependencies": {