chore(deps): bump prisma from 4.16.2 to 6.4.1

Bumps [prisma](https://github.com/prisma/prisma/tree/HEAD/packages/cli) from 4.16.2 to 6.4.1.
- [Release notes](https://github.com/prisma/prisma/releases)
- [Commits](https://github.com/prisma/prisma/commits/6.4.1/packages/cli)

---
updated-dependencies:
- dependency-name: prisma
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

packages/backend/package.json

@@ -78,7 +78,7 @@
         "morgan": "^1.10.0",
         "node-cron": "^3.0.2",
         "oauth": "^0.10.0",
-        "prisma": "^4.16.0",
+        "prisma": "^6.4.1",
         "rate-limiter-flexible": "^5.0.3",
         "redis": "^4.6.8",
         "svix": "^1.14.0",