Add SANITIZER_CDECL to __tsan_check_no_mutexes_held (#71471)

in https://github.com/llvm/llvm-project/pull/69625

 @strega-nil added
cdecl to a huge number of sanitizer interface declarations. It looks
like she was racing against @kennyyu adding a tsan interface function. I
noticed this when merging in the latest changes from llvm/main and
corrected it.

Co-authored-by: Charlie Barto <Charles.Barto@microsoft.com>