Update @types/unist to latest version

[GuiltyDolphin]

Initial checklist

• [X] I read the support docs
• [X] I read the contributing guide
• [X] I agree to follow the code of conduct
• [X] I searched issues and couldn’t find anything (or linked relevant results below)
• [X] If applicable, I’ve added docs and tests

Description of changes

Updates @types/unist to the latest version.

cc @wooorm @ChristianMurphy

[ChristianMurphy]

version is already in range https://nodesource.com/blog/semver-tilde-and-caret/ no update is needed

[github-actions[bot]]

Hi! This was closed. Team: If this was merged, please describe when this is likely to be released. Otherwise, please add one of the no/* labels.