[OpenMP][test] Add #include <cstdint> for gcc-13
authorzhanglimin <zhanglimin@loongson.cn>
Thu, 10 Nov 2022 05:46:01 +0000 (13:46 +0800)
committerWeining Lu <luweining@loongson.cn>
Thu, 10 Nov 2022 05:46:04 +0000 (13:46 +0800)
Due to https://gcc.gnu.org/gcc-13/porting_to.html#header-dep-changes.

Reviewed By: SixWeining, MaskRay

Differential Revision: https://reviews.llvm.org/D137543

openmp/runtime/test/tasking/hidden_helper_task/common.h