Bump ufmt from 2.8.0 to 2.9.1

Bumps [ufmt](https://github.com/omnilib/ufmt) from 2.8.0 to 2.9.1.
- [Changelog](https://github.com/omnilib/ufmt/blob/main/CHANGELOG.md)
- [Commits](omnilib/ufmt@v2.8.0...v2.9.1)

---
updated-dependencies:
- dependency-name: ufmt
  dependency-version: 2.9.1
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

pyproject.toml

@@ -48,7 +48,7 @@ dev = [
     "build > 1",
     "flake8 == 7.3.0",
     "flake8-bugbear == 24.12.12",
-    "ufmt == 2.8.0",
+    "ufmt == 2.9.1",
     "usort == 1.0.8.post1",
     "pyrefly == 0.63.1",
 ]