fix(deps): update dependencies (#103)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

packages/astro-htmlnano/package.json

@@ -42,7 +42,7 @@
   },
   "dependencies": {
     "astro-posthtml": "^1.1.4",
-    "cssnano": "^7.1.7",
+    "cssnano": "^9.0.0",
     "htmlnano": "^3.2.1",
     "postcss": "^8.5.10",
     "relateurl": "^0.2.7",

test/astro5/package.json

@@ -18,6 +18,6 @@
     "astro": "^5.18.1",
     "astro-htmlnano": "workspace:*",
     "astro-posthtml": "workspace:*",
-    "htmlnano": "^2.1.5"
+    "htmlnano": "^3.0.0"
   }
 }