requesterFn must be passed although it is not required

**Description** I stumbled into a types misleading. I've tried to create new Gitlab instance using @gitbeaker/core. ` const gitlabClient = new Gitlab({ token: secrets.accessToken, host: secrets.host, });` Running this raised an error: "error":"requesterFn must be passed". Looking at the instance required params for RootResourceOptions (which the Gitlab instance extends) shows no required ones. `interface RootResourceOptions<C> { requesterFn?: (resourceOptions: ResourceOptions) => RequesterType; host?: string; prefixUrl?: string; camelize?: C; queryTimeout?: number | null; rateLimitDuration?: number; sudo?: string | number; profileToken?: string; profileMode?: 'execution' | 'memory'; rateLimits?: RateLimitOptions; agent?: Agent; }`