do not print in style by default for errors

[skshetry]

I mistakenly set the styled parameter default value in the error_write to True, which was printing using rich by default. This caused the messages to also include the ANSI codes to display.

$ dvc add foo
100% Adding...|████████████████████████████████████████|1/1 [00:00, 76.95file/s]

Some targets could not be linked from cache to workspace.
See <[36mhttps://dvc.org/doc/user-guide/troubleshooting#cache-types[39m> for 
more information.
To re-link these targets, reconfigure cache types and then run:

        dvc checkout foo.dvc

To track the changes with git, run:

	git add foo.dvc

• ❗ I have followed the Contributing to DVC checklist.

• 📖 If this PR requires documentation updates, I have created a separate PR (or issue, at least) in dvc.org and linked it here.

Thank you for the contribution - we'll try to review it as soon as possible. 🙏