fix: services/api/package.json & services/api/package-lock.json to reduce vulnerabilities (#985)

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-FASTIFYMULTIPART-8660811

Co-authored-by: snyk-bot <[email protected]>

Author: johanbook

services/api/package-lock.json

@@ -23,7 +23,7 @@
     "test:debug": "node --inspect-brk -r tsconfig-paths/register -r ts-node/register node_modules/.bin/jest --runInBand"
   },
   "dependencies": {
-    "@fastify/multipart": "^8.0.0",
+    "@fastify/multipart": "^8.3.1",
     "@fastify/static": "^7.0.4",
     "@nestjs/common": "^10.3.9",
     "@nestjs/core": "^10.3.9",