build(deps): update sphinx-click requirement from ^5.0.1 to ^6.0.0

Updates the requirements on [sphinx-click](https://github.com/click-contrib/sphinx-click) to permit the latest version.
- [Release notes](https://github.com/click-contrib/sphinx-click/releases)
- [Commits](click-contrib/sphinx-click@5.0.1...6.0.0)

---
updated-dependencies:
- dependency-name: sphinx-click
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

pyproject.toml

@@ -37,7 +37,7 @@ sphinx = "^7.2.6"
 sphinx-rtd-theme = "^2.0.0"
 taskipy = "^1.4"
 mypy = "^1.2.0"
-sphinx-click = "^5.0.1"
+sphinx-click = "^6.0.0"
 
 [tool.poetry.scripts]
 cp2klint = 'cp2k_input_tools.cli.lint:cp2klint'