CLI-1192: Symfony 6.3.4 breaks checklists

[danepowell]

Checklists are supposed to look like this:

Screen.Recording.2023-11-01.at.12.44.49.PM.mov

Upgrading to 6.3.4 breaks them:

Screen.Recording.2023-11-01.at.12.44.13.PM.mov

The culprit is this PR: symfony/symfony#51378

When the progress bar advances and ConsoleSectionOutput->doWrite('my message\n', false) is called, the patch changes this to $message = 'my message' and $newline = true. You'd think this would be equivalent, but apparently it's not, as it results in too many lines being cleared, erasing the checklist and previous console output.

Our checklist and spinner classes are here: https://github.com/acquia/cli/tree/main/src/Output