Bump shfmt-py from 4.1.0 to 4.2.0

Bumps [shfmt-py](https://github.com/MaxWinterstein/shfmt-py) from 4.1.0 to 4.2.0.
- [Release notes](https://github.com/MaxWinterstein/shfmt-py/releases)
- [Commits](MaxWinterstein/shfmt-py@v4.1.0...v4.2.0)

---
updated-dependencies:
- dependency-name: shfmt-py
  dependency-version: 4.2.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

pyproject.toml

@@ -66,7 +66,7 @@ dev = [
     # but also because having it installed means that ``actionlint-py`` will
     # use it to lint shell commands in GitHub workflow files.
     "shellcheck-py==0.11.0.1",
-    "shfmt-py==4.1.0",
+    "shfmt-py==4.2.0",
     "sphinx==9.1.0",
     "sphinx-copybutton==0.5.2",
     "sphinx-lint==1.0.2",