chore: add missing tsx

Author: luxass

package.json

@@ -28,6 +28,7 @@
     "@stoplight/spectral-cli": "^6.14.2",
     "eslint": "^9.21.0",
     "eslint-plugin-format": "^1.0.1",
+    "tsx": "^4.19.3",
     "typescript": "^5.8.2",
     "vitest": "^3.0.7",
     "wrangler": "^3.111.0"