Update dependency happy-dom to v18

Author: renovate[bot]

package-lock.json

@@ -15,7 +15,7 @@
     "@nuxt/test-utils": "3.19.2",
     "@vue/test-utils": "2.4.6",
     "element-plus": "2.10.4",
-    "happy-dom": "17.6.3",
+    "happy-dom": "18.0.1",
     "nuxt": "3.17.7",
     "playwright-core": "1.54.1",
     "vitest": "3.2.4",