Bump cssnano from 7.0.6 to 7.1.0

Bumps [cssnano](https://github.com/cssnano/cssnano) from 7.0.6 to 7.1.0.
- [Release notes](https://github.com/cssnano/cssnano/releases)
- [Commits](https://github.com/cssnano/cssnano/compare/cssnano@7.0.6...cssnano@7.1.0)

---
updated-dependencies:
- dependency-name: cssnano
  dependency-version: 7.1.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

package.json

@@ -44,7 +44,7 @@
         "@tailwindcss/forms": "^0.5.10",
         "@tailwindcss/typography": "^0.5.16",
         "autoprefixer": "^10.4.21",
-        "cssnano": "7.0.6",
+        "cssnano": "7.1.0",
         "gulp": "^5.0.0",
         "gulp-concat": "2.6.1",
         "gulp-livereload": "4.0.2",