Bump openai-messages-token-helper from 0.1.10 to 0.1.11

Bumps [openai-messages-token-helper](https://github.com/pamelafox/openai-messages-token-helper) from 0.1.10 to 0.1.11.
- [Changelog](https://github.com/pamelafox/openai-messages-token-helper/blob/main/CHANGELOG.md)
- [Commits](https://github.com/pamelafox/openai-messages-token-helper/commits)

---
updated-dependencies:
- dependency-name: openai-messages-token-helper
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

src/backend/requirements.txt

@@ -119,7 +119,7 @@ openai==1.55.3
     # via
     #   fastapi-app (pyproject.toml)
     #   openai-messages-token-helper
-openai-messages-token-helper==0.1.10
+openai-messages-token-helper==0.1.11
     # via fastapi-app (pyproject.toml)
 opentelemetry-api==1.30.0
     # via