build(deps): bump psf/black from 26.1.0 to 26.3.1

Bumps [psf/black](https://github.com/psf/black) from 26.1.0 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@6305bf1...c6755bb)

---
updated-dependencies:
- dependency-name: psf/black
  dependency-version: 26.3.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

.github/workflows/black.yml

@@ -11,4 +11,4 @@ jobs:
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       - uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
-      - uses: psf/black@6305bf1ae645ab7541be4f5028a86239316178eb # v26.1.0
+      - uses: psf/black@c6755bb741b6481d6b3d3bb563c83fa060db96c9 # v26.3.1