fix(deps): update dependency @fastify/multipart to v8.3.1 [security]

Author: renovate[bot]

package.json

@@ -49,7 +49,7 @@
     "changelog": "conventional-changelog -p angular -i CHANGELOG.md -s"
   },
   "dependencies": {
-    "@fastify/multipart": "8.0.0",
+    "@fastify/multipart": "8.3.1",
     "@fastify/static": "6.12.0",
     "@nestjs/cache-manager": "2.1.1",
     "@nestjs/common": "10.2.10",