libuv: updated to 1.27.0
v1.27.0:
* doc: describe unix signal handling better
* linux: use statx() to obtain file birth time
* src: fill sockaddr_in6.sin6_len when it's defined
* test: relax uv_hrtime() test assumptions
* build: make cmake install LICENSE only once
* bsd: plug uv_fs_event_start() error path fd leak
* unix: fix __FreeBSD_kernel__ typo
* doc: add note about uv_run() not being reentrant
* unix, win: make fs-poll close wait for resource cleanup
* doc: fix typo in uv_thread_options_t definition
* win: skip winsock initialization in safe mode
* unix: refactor getsockname/getpeername methods
* win,udp: allow to use uv_udp_open on bound sockets
* udp: add support for UDP connected sockets
* build: fix uv_test shared uv Windows cmake build
* build: add android-configure scripts to EXTRA_DIST
* build: add missing header
* sunos: add perror() output prior to abort()
* test,sunos: disable UV_DISCONNECT handling
* sunos: disable __attribute__((unused))
* test,sunos: use unistd.h code branch
* build,sunos: better handling of non-GCC compiler
* test,sunos: fix statement not reached warnings
* sunos: fix argument/prototype mismatch in atomics
* test,sunos: test-ipc.c lacks newline at EOF
* test: change spawn_stdin_stdout return to void
* test: remove call to floor() in test driver
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