[clang] clang-format: Add AlignFunctionDeclarations attribute to AlignConsecutiveDeclarations (PR #108241)

[Owen Pan via cfe-commits]

owenca wrote:

> In regards to the "Test documentation build / Test documentation build (pull_request) " failure, I'm honestly not sure how to fix the formatting in this. I'm not seeing anything wrong with my addition in Format.h, but maybe there's something I'm missing. I never touch ClangFormatStyleOptions.rst directly.

See https://github.com/llvm/llvm-project/pull/108241/files#r1770622313.

https://github.com/llvm/llvm-project/pull/108241