[clang] [llvm] [clang-format] Add CI check confirming ClangFormatStyleOptions.rst is up-to-date. (PR #111513)

[Aiden Grossman via cfe-commits]

boomanaiden154 wrote:

> Because only part of the doc is generated by dump_format_style.py.

It should still be possible to only include the non-generated parts in the repo and then modify the script to add all the generated components on afterwards as a build step? Not sure if I'm missing something here.

https://github.com/llvm/llvm-project/pull/111513