build: bump clang-format from 21.1.5 to 21.1.6 in the clang-tools group (#147)

Bumps the clang-tools group with 1 update: [clang-format](https://github.com/ssciwr/clang-format-wheel).


Updates `clang-format` from 21.1.5 to 21.1.6
- [Release notes](https://github.com/ssciwr/clang-format-wheel/releases)
- [Commits](ssciwr/clang-format-wheel@v21.1.5...v21.1.6)

---
updated-dependencies:
- dependency-name: clang-format
  dependency-version: 21.1.6
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: clang-tools
...

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

Author: dependabot[bot]

pyproject.toml

@@ -34,7 +34,7 @@ dependencies = [
     "pip>=20.3", # Required to install clang-format and clang-tidy
     "tomli>=1.1.0; python_version < '3.11'",
     "setuptools>=45.0.0", # Required for pkg_resources in clang-tidy
-    "clang-format==21.1.5",
+    "clang-format==21.1.6",
     "clang-tidy==21.1.1",
 ]
 dynamic = ["version"]