fix(deps): update dependency bignumber.js to v9.2.1

Author: renovate[bot]

package-lock.json

@@ -13,7 +13,7 @@
   "dependencies": {
     "@discordjs/builders": "0.13.0",
     "@discordjs/rest": "0.4.1",
-    "bignumber.js": "9.0.2",
+    "bignumber.js": "9.2.1",
     "discord-api-types": "0.32.0",
     "discord.js": "13.6.0",
     "dotenv": "16.0.0",