Bump the prisma group in /backend with 2 updates

Bumps the prisma group in /backend with 2 updates: [@prisma/client](https://github.com/prisma/prisma/tree/HEAD/packages/client) and [prisma](https://github.com/prisma/prisma/tree/HEAD/packages/cli).


Updates `@prisma/client` from 5.15.1 to 5.16.1
- [Release notes](https://github.com/prisma/prisma/releases)
- [Commits](https://github.com/prisma/prisma/commits/5.16.1/packages/client)

Updates `prisma` from 5.15.1 to 5.16.1
- [Release notes](https://github.com/prisma/prisma/releases)
- [Commits](https://github.com/prisma/prisma/commits/5.16.1/packages/cli)

---
updated-dependencies:
- dependency-name: "@prisma/client"
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: prisma
- dependency-name: prisma
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: prisma
...

Signed-off-by: dependabot[bot] <[email protected]>

backend/package.json

@@ -33,7 +33,7 @@
   "dependencies": {
     "@apollo/server": "^4.10.4",
     "@getbrevo/brevo": "^2.1.1",
-    "@prisma/client": "^5.15.1",
+    "@prisma/client": "^5.16.1",
     "@vuepress/theme-default": "^2.0.0-rc.37",
     "axios": "^1.7.2",
     "class-validator": "^0.14.1",
@@ -42,7 +42,7 @@
     "graphql": "^16.9.0",
     "graphql-scalars": "^1.23.0",
     "jsonwebtoken": "^9.0.2",
-    "prisma": "^5.15.1",
+    "prisma": "^5.16.1",
     "prisma-extension-soft-delete": "^1.0.1",
     "reflect-metadata": "^0.2.2",
     "tsconfig-paths": "^4.2.0",