fix(deps): update dependency @asteasolutions/zod-to-openapi to v8

Author: renovate[bot]

package.json

@@ -28,7 +28,7 @@
     "vitest": "^2.1.9"
   },
   "dependencies": {
-    "@asteasolutions/zod-to-openapi": "^7.3.4",
+    "@asteasolutions/zod-to-openapi": "^8.1.0",
     "@tsconfig/node-lts": "^20.1.3",
     "tsx": "^4.20.5",
     "typescript": "^5.9.2",