chore(deps-dev): bump black from 26.3.0 to 26.3.1 in /requirements (#844)

Bumps [black](https://github.com/psf/black) from 26.3.0 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@26.3.0...26.3.1)

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

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

Author: dependabot[bot]

requirements/dev.txt

@@ -10,6 +10,6 @@ parameterized==0.9.0
 pyelftools~=0.32 # Used to verify the generated Go binary architecture in integration tests (utils.py)
 
 # formatter
-black==26.3.0; python_version>="3.10"
+black==26.3.1; python_version>="3.10"
 black==25.11.0; python_version<"3.10"
 ruff==0.15.5