Exit Code and Signal can be `undefined`

[tsmaeder]

When starting a pty like so:

const terminal = spawn(
            command,
            (isWindows && options.commandLine) || options.args || [],
            options.options || {}
        );

        terminal.onExit(({ exitCode, signal }) => {
            console.log(`terminal:exitCode = ${exitCode}, signal =${signal}`);

and then later doing terminal.kill, I sometimes get terminal:exitCode = undefined, signal =undefined in the log. I belies this should never happen, right?

The problem appears on nodejs 20.18.1 on a windows-2019 github action runner. Locally, it seems to always work.

[tsmaeder]

Updating the runner image to 2022 fixes the problem. I guess the old image is using winPty. Windows build number is 17763, I believe. (https://github.com/actions/runner-images/blob/main/images/windows/Windows2019-Readme.md)