build(deps): bump cssnano-preset-default from 7.0.5 to 7.0.6

Bumps [cssnano-preset-default](https://github.com/cssnano/cssnano) from 7.0.5 to 7.0.6.
- [Release notes](https://github.com/cssnano/cssnano/releases)
- [Commits](https://github.com/cssnano/cssnano/compare/[email protected]@7.0.6)

---
updated-dependencies:
- dependency-name: cssnano-preset-default
  dependency-type: indirect
  update-type: version-update:semver-patch
...

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