build(deps): bump mkdirp from 2.1.3 to 2.1.5

Bumps [mkdirp](https://github.com/isaacs/node-mkdirp) from 2.1.3 to 2.1.5.
- [Release notes](https://github.com/isaacs/node-mkdirp/releases)
- [Changelog](https://github.com/isaacs/node-mkdirp/blob/main/CHANGELOG.md)
- [Commits](isaacs/node-mkdirp@v2.1.3...v2.1.5)

---
updated-dependencies:
- dependency-name: mkdirp
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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