[clang] [clang][Documentation] fix documentation for clang-format (PR #83415)

[Owen Pan via cfe-commits]

owenca wrote:

Hi, you need to edit `clang/include/clang/Format/Format.h` and then run `clang/docs/tools/dump_format_style.py` to regenerate `clang/docs/ClangFormatStyleOptions.rst`.

https://github.com/llvm/llvm-project/pull/83415