[Bug libstdc++/113327] std::sleep_for(std::chrono::hours::max()) returns immediately

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113327

--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Converting hours::max() to milliseconds overflows and produces a negative
value.