Log Message:
libuv: updated to 1.22.0

Version 1.22.0:
* unix: remove checksparse.sh
* win: fix mingw build error
* win: fix -Wunused-function warnings in thread.c
* unix,win: merge timers implementation
* win: fix pointer type in pipe.c
* win: fixing build for older MSVC compilers
* zos: clear poll events on every iteration
* zos: write-protect message queue
* zos: use correct pointer type in strnlen
* unix,win: merge handle flags
* doc: update Imran Iqbal's GitHub handle
* src: add new error apis to prevent memory leaks
* test: make test-condvar call uv_cond_wait
* fs: change position of uv_fs_lchown