chore(deps-dev): bump nuxt-windicss from 2.5.2 to 2.6.0

Bumps [nuxt-windicss](https://github.com/windicss/nuxt-windicss) from 2.5.2 to 2.6.0.
- [Release notes](https://github.com/windicss/nuxt-windicss/releases)
- [Commits](windicss/nuxt-windicss@v2.5.2...v2.6.0)

---
updated-dependencies:
- dependency-name: nuxt-windicss
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]