Bump lesscpy from 0.15.0 to 0.15.1

Bumps [lesscpy](https://github.com/lesscpy/lesscpy) from 0.15.0 to 0.15.1.
- [Release notes](https://github.com/lesscpy/lesscpy/releases)
- [Commits](https://github.com/lesscpy/lesscpy/commits)

---
updated-dependencies:
- dependency-name: lesscpy
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]