fix(deps): update dependency mongoose to v9

Author: renovate[bot]

sample/06-mongoose/package.json

@@ -23,7 +23,7 @@
     "@nestjs/core": "11.1.9",
     "@nestjs/mongoose": "11.0.3",
     "@nestjs/platform-express": "11.1.9",
-    "mongoose": "8.20.1",
+    "mongoose": "9.0.0",
     "reflect-metadata": "0.2.2",
     "rimraf": "6.1.2",
     "rxjs": "7.8.2"

sample/14-mongoose-base/package.json

@@ -22,7 +22,7 @@
     "@nestjs/common": "11.1.9",
     "@nestjs/core": "11.1.9",
     "@nestjs/platform-express": "11.1.9",
-    "mongoose": "8.20.1",
+    "mongoose": "9.0.0",
     "reflect-metadata": "0.2.2",
     "rimraf": "6.1.2",
     "rxjs": "7.8.2"