build(deps): bump postman-collection from 5.1.0 to 5.1.1 (#3568)

Bumps [postman-collection](https://github.com/postmanlabs/postman-collection) from 5.1.0 to 5.1.1.
- [Release notes](https://github.com/postmanlabs/postman-collection/releases)
- [Changelog](https://github.com/postmanlabs/postman-collection/blob/develop/CHANGELOG.yaml)
- [Commits](postmanlabs/postman-collection@v5.1.0...v5.1.1)

---
updated-dependencies:
- dependency-name: postman-collection
  dependency-version: 5.1.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

packages/backend/package.json

@@ -121,7 +121,7 @@
     "mustache": "^4.2.0",
     "openai": "^5.19.1",
     "postman-code-generators": "^1.14.1",
-    "postman-collection": "^5.1.0",
+    "postman-collection": "^5.1.1",
     "semver": "^7.7.2",
     "swagger-ui-dist": "^5.29.0",
     "swagger-ui-express": "^5.0.1",