[clang] [clang-format] Don't count template template parameter as declaration (PR #96396)

[Emilia Kond via cfe-commits]

rymiel wrote:

Isn't fixing bugs meant to change defaults? See #61732, #48746 and #93793. The old version is confusing since it looks like a separate template parameter when it isn't.

https://github.com/llvm/llvm-project/pull/96396