fix: package.json to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-VITE-13644406

Author: snyk-io[bot]

package.json

@@ -10,7 +10,7 @@
     "cypress": "^13.13.1",
     "solid-start-netlify": "^0.3.11",
     "typescript": "^4.9.5",
-    "vite": "^6.3.6"
+    "vite": "^6.4.1"
   },
   "dependencies": {
     "@solidjs/meta": "^0.29.4",