chore(deps): update nuxt core to v3.15.4

Author: renovate[bot]

package.json

@@ -60,7 +60,7 @@
   "devDependencies": {
     "@antfu/eslint-config": "4.1.0",
     "@codspeed/vitest-plugin": "3.1.1",
-    "@nuxt/kit": "3.15.3",
+    "@nuxt/kit": "3.15.4",
     "@types/estree": "1.0.6",
     "@types/node": "22.12.0",
     "@vitest/coverage-v8": "2.1.8",
@@ -83,7 +83,7 @@
   },
   "resolutions": {
     "magic-regexp": "link:.",
-    "nuxt": "3.15.3",
+    "nuxt": "3.15.4",
     "vite": "6.0.11",
     "vue": "3.5.13"
   },