Bump vite-plugin-windicss from 1.8.5 to 1.8.6

Bumps [vite-plugin-windicss](https://github.com/antfu/vite-plugin-windicss) from 1.8.5 to 1.8.6.
- [Release notes](https://github.com/antfu/vite-plugin-windicss/releases)
- [Commits](https://github.com/antfu/vite-plugin-windicss/compare/v1.8.5...v1.8.6)

---
updated-dependencies:
- dependency-name: vite-plugin-windicss
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

package.json

@@ -39,7 +39,7 @@
         "vite": "^2.9.13",
         "vite-plugin-eslint": "^1.6.1",
         "vite-plugin-pwa": "^0.12.0",
-        "vite-plugin-windicss": "^1.8.5"
+        "vite-plugin-windicss": "^1.8.6"
     },
     "eslintConfig": {
         "root": true,