build(deps): Bump black in /packages/agent-os/services/cloud-board (#205)

Bumps [black](https://github.com/psf/black) from 24.10.0 to 26.3.1.
- [Release notes](https://github.com/psf/black/releases)
- [Changelog](https://github.com/psf/black/blob/main/CHANGES.md)
- [Commits](psf/black@24.10.0...26.3.1)

---
updated-dependencies:
- dependency-name: black
  dependency-version: 26.3.1
  dependency-type: direct:production
...

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

Author: dependabot[bot]

packages/agent-os/services/cloud-board/requirements.txt

@@ -37,6 +37,6 @@ pytest-asyncio==1.1.0
 pytest-cov==5.0.0
 
 # Development
-black==24.10.0
+black==26.3.1
 ruff==0.12.4
 mypy==1.14.0