[clang] [clang-format] Add SpaceInParensOption for __attribute__ keyword (PR #77522)

[Gedare Bloom via cfe-commits]

gedare wrote:

I'm still making changes on this. Not sure how to mark that in GH. Need to add test cases for double parens, and get it working for the newly added suboptions. 

https://github.com/llvm/llvm-project/pull/77522