style: pre-commit.ci fixes

Author: pre-commit-ci[bot]

CHANGELOG.md

@@ -29,7 +29,8 @@ config file processing, and a few other edge cases not previously observed.
 - Bugfix: Warnings and updates for Cuda 11 support [#851][]
 - Backend: Add tests for newer compilers (lost with Travis CI) [#972][]
 - Backend: Increaase minimum CMake to 3.5 [#898][]
-- Backend: Remove integrated Conan support (provided now by Conan center) [#853][]
+- Backend: Remove integrated Conan support (provided now by Conan center)
+  [#853][]
 
 [#970]: https://github.com/CLIUtils/CLI11/pull/970
 [#968]: https://github.com/CLIUtils/CLI11/pull/968