fix(deps): update dependency @solidjs/router to v0.15.4

Author: renovate[bot]

accelerate/solidstart-starter/package.json

@@ -9,7 +9,7 @@
   "dependencies": {
     "@prisma/client": "7.0.0",
     "@prisma/extension-accelerate": "^2.0.2",
-    "@solidjs/router": "0.15.3",
+    "@solidjs/router": "0.15.4",
     "@solidjs/start": "1.1.7",
     "dotenv": "^17.2.3",
     "solid-js": "1.9.10",