Log Message:
libuv: updated to 1.28.0

Version 1.28.0
* unix,win: add uv_gettimeofday()
* unix,win: add uv_fs_{open,read,close}dir()
* unix: fix uv_interface_addresses()
* fs: remove macOS-specific copyfile(3)
* fs: add test for copyfile() respecting permissions
* build: partially revert 5234b1c43a
* zos: fix setsockopt error when using AF_UNIX
* unix: suppress EINTR/EINPROGRESS in uv_fs_close()
* build: use cmake APPLE variable to detect platform
* distcheck: remove duplicate test/ entry
* unix: remove unused cmpxchgl() function
* unix: support sockaddr_un in uv_udp_send()
* unix: guard use of PTHREAD_STACK_MIN
* unix,win: introduce uv_timeval64_t
* doc: document uv_timeval_t and uv_timeval64_t