fix(deps): update dependency mongoose to v8.21.0

Author: renovate[bot]

package-lock.json

@@ -19,7 +19,7 @@
 		"didyoumean2": "7.0.4",
 		"discord.js": "14.22.1",
 		"match-sorter": "8.2.0",
-		"mongoose": "8.20.1",
+		"mongoose": "8.21.0",
 		"strife.js": "4.4.0"
 	},
 	"devDependencies": {