Build(deps-dev): bump postcss-html from 1.5.0 to 1.6.0

Bumps [postcss-html](https://github.com/ota-meshi/postcss-html) from 1.5.0 to 1.6.0.
- [Release notes](https://github.com/ota-meshi/postcss-html/releases)
- [Commits](https://github.com/ota-meshi/postcss-html/compare/v1.5.0...v1.6.0)

package.json

@@ -70,7 +70,7 @@
     "eslint-plugin-prettier": "^5.1.3",
     "eslint-plugin-vue": "^9.20.0",
     "husky": "^8.0.3",
-    "postcss-html": "^1.5.0",
+    "postcss-html": "^1.6.0",
     "prettier": "^3.1.1",
     "stylelint": "^14.16.1",
     "stylelint-config-prettier": "^9.0.5",