[clang] [clang] Catch missing format attributes (PR #70024)

[Budimir Aranđelović via cfe-commits]

budimirarandjelovichtec wrote:

@AaronBallman @aaronpuchert @vitalybuka @Endilll

Last found issues are addressed and new PR is created: https://github.com/llvm/llvm-project/pull/105479

https://github.com/llvm/llvm-project/pull/70024