lib: fix type error for _refreshLine

[JacksonTian]

When press tab, but don't hit any completions, the interface throws type error.

node:internal/readline/interface:687
      this._refreshLine();
           ^

TypeError: this._refreshLine is not a function
    at [_tabCompleter] (node:internal/readline/interface:687:12)
    at [_tabComplete] (node:internal/readline/interface:660:24)
    at process.processTicksAndRejections (node:internal/process/task_queues:95:5)

Node.js v20.11.1

The reproduce steps:

1. The code:

import readline from "readline/promises";

const completions = '.set_a .set_b .help'.split(' ');
const rl = readline.createInterface({
    input: process.stdin,
    output: process.stdout,
    completer: (line) => {
        const hits = completions.filter((c) => c.startsWith(line));
        // Show all completions if none found
        return [hits.length ? hits : completions, line];
    }
});

const answer = await rl.question('What is your query: > ');

2. Run it with node. Type in hh, then press tab.
3. Gets type error.

[nodejs-github-bot]

CI: https://ci.nodejs.org/job/node-test-pull-request/57800/

[nodejs-github-bot]

Landed in 0a252c2