mainline version gcc-13 cannot use "uintptr_t" via "#include <string>"

Change-Id: I0049bb92658b4226e32783ad4d8271787deef5f3
Reviewed-on: https://chromium-review.googlesource.com/c/breakpad/breakpad/+/3964166
Reviewed-by: Mike Frysinger <vapier@chromium.org>

src/client/linux/handler/minidump_descriptor.h

@@ -32,6 +32,7 @@
 #include <assert.h>
 #include <sys/types.h>
 
+#include <cstdint>
 #include <string>
 
 #include "client/linux/handler/microdump_extra_info.h"