Enable the @typescript-eslint/no-explicit-any eslint rule (#1830)

## Description:

Enable the `@typescript-eslint/no-explicit-any` eslint rule.

Fixes #1789

## Please complete the following:

- [x] I have added screenshots for all UI updates
- [x] I process any text displayed to the user through translateText()
and I've added it to the en.json file
- [x] I have added relevant tests to the test directory
- [x] I confirm I have thoroughly tested these changes and take full
responsibility for any bugs introduced

src/server/GameServer.ts

@@ -226,6 +226,7 @@ export class GameServer {
       );
     });
     client.ws.on("error", (error: Error) => {
+      // eslint-disable-next-line @typescript-eslint/no-explicit-any
       if ((error as any).code === "WS_ERR_UNEXPECTED_RSV_1") {
         client.ws.close(1002, "WS_ERR_UNEXPECTED_RSV_1");
       }