build(deps): bump mkdirp from 0.5.3 to 0.5.4

Bumps [mkdirp](https://github.com/isaacs/node-mkdirp) from 0.5.3 to 0.5.4.
- [Release notes](https://github.com/isaacs/node-mkdirp/releases)
- [Changelog](https://github.com/isaacs/node-mkdirp/blob/master/CHANGELOG.md)
- [Commits](isaacs/node-mkdirp@v0.5.3...v0.5.4)

Signed-off-by: dependabot-preview[bot] <[email protected]>

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>