[Request] - Update the mock-nodecg to work with NodeCG 2.x

[RiQuY]

Description

I don't know how much compatible are the mocks with NodeCG 2.x, I tried a simple .spy() on nodecg.log.info() and it worked fine but I guess for more complicated mocks this library will not work, so if the project is still alive I suggest updating it.

EDIT: A non working example will be using nodecg.Router() because that is not present on the mock.

 FAIL  tests/extension/index.test.js > index suite > should execute
TypeError: nodecg.Router is not a function
 ❯ Module.setOAuthRoute src/extension/webserver.js:22:25
     20|  */
     21| export function setOAuthRoute(nodecg) {
     22|   const router = nodecg.Router();
       |                         ^
     23| 
     24|   /**
 ❯ Module.__vite_ssr_exports__.default src/extension/index.js:32:3
 ❯ tests/extension/index.test.js:18:10