[clang] [llvm] [MC/DC][Coverage] Loosen the limit of NumConds from 6 (PR #82448)

[NAKAMURA Takumi via cfe-commits]

chapuni wrote:

I am certain this is ready for land.

Could I update release notes later? I am afraid since I have been always missing release schedules.

https://github.com/llvm/llvm-project/pull/82448