Update big.js to version 7.0.1

Author: depfu[bot]

package-lock.json

@@ -31,7 +31,7 @@
     "@types/react": "^18.2.37",
     "@types/react-dom": "^18.2.15",
     "astro": "^5.13.4",
-    "big.js": "^6.2.1",
+    "big.js": "^7.0.1",
     "react": "^19.1.1",
     "react-dom": "^19.1.1",
     "react-helmet": "^6.1.0"