chore(deps): update dependency @typegoose/typegoose to v12.15.0

Author: renovate[bot]

package.json

@@ -19,7 +19,7 @@
   },
   "dependencies": {
     "@sapphire/type": "2.6.0",
-    "@typegoose/typegoose": "12.14.0",
+    "@typegoose/typegoose": "12.15.0",
     "bufferutil": "4.0.9",
     "cookie-parser": "1.4.7",
     "decompress": "4.2.1",