[bug]: Incorrect type of TimeoutCallback

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Description

TimeoutCallback is defined like so:
export declare type TimeoutCallback = (args?: any[]) => void;
but it should be like this:
export declare type TimeoutCallback = (...args: any[]) => unknown;

Reproduction instruction

this.setTimeout(
    (foo: string, bar: string) => {
        // Any content
    },
    1000,
    'foo',
    'bar',
);