Bump jest and @types/jest in /backend

Bumps [jest](https://github.com/facebook/jest/tree/HEAD/packages/jest) and [@types/jest](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/jest). These dependencies needed to be updated together.

Updates `jest` from 29.3.1 to 29.5.0
- [Release notes](https://github.com/facebook/jest/releases)
- [Changelog](https://github.com/facebook/jest/blob/main/CHANGELOG.md)
- [Commits](https://github.com/facebook/jest/commits/v29.5.0/packages/jest)

Updates `@types/jest` from 29.2.5 to 29.4.0
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/jest)

---
updated-dependencies:
- dependency-name: jest
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: "@types/jest"
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

backend/package.json

@@ -7,13 +7,13 @@
   "dependencies": {
     "@typegoose/typegoose": "^10.0.0",
     "@types/express": "^4.17.15",
-    "@types/jest": "^29.2.5",
+    "@types/jest": "^29.4.0",
     "@types/node": "^18.11.18",
     "@types/swagger-ui-express": "^4.1.3",
     "body-parser": "^1.20.1",
     "dotenv": "^16.0.3",
     "express": "^4.18.2",
-    "jest": "^29.3.1",
+    "jest": "^29.5.0",
     "mongoose": "^6.8.4",
     "swagger-autogen": "^2.22.0",
     "swagger-ui-express": "^4.6.0",