Fix build on musl by including stdint.h (#81434)

openmp fails to build on musl since it lacks the defines for int32_t

Co-authored-by: Daniel Martinez <[email protected]>

Author: Calandracas606

openmp/libomptarget/include/Shared/SourceInfo.h

@@ -13,6 +13,7 @@
 #ifndef OMPTARGET_SHARED_SOURCE_INFO_H
 #define OMPTARGET_SHARED_SOURCE_INFO_H
 
+#include <stdint.h>
 #include <string>
 
 #ifdef _WIN32