deps: upgrade libuv to 1.12.0

Fixes: #12853
Fixes: #854
PR-URL: #13306
Reviewed-By: Santiago Gimeno <[email protected]>
Reviewed-By: Ben Noordhuis <[email protected]>
Reviewed-By: James M Snell <[email protected]>
Reviewed-By: Michael Dawson <[email protected]>

Author: cjihrig

deps/uv/.mailmap

@@ -1,3 +1,4 @@
+A. Hauptmann <andreashauptmann@t-online.de>
 Aaron Bieber <qbit@deftly.net> <deftly@gmail.com>
 Alan Gutierrez <alan@prettyrobots.com> <alan@blogometer.com>
 Andrius Bentkus <andrius.bentkus@gmail.com> <toxedvirus@gmail.com>
@@ -39,3 +40,4 @@ Timothy J. Fontaine <tjfontaine@gmail.com>
 Yasuhiro Matsumoto <mattn.jp@gmail.com>
 Yazhong Liu <yorkiefixer@gmail.com>
 Yuki Okumura <mjt@cltn.org>
+jBarz <jBarz@users.noreply.github.com> <jbarboza@ca.ibm.com>

deps/uv/AUTHORS

@@ -284,3 +284,11 @@ muflub <admin@lodle.net>
 Daniel Bevenius <daniel.bevenius@gmail.com>
 Howard Hellyer <hhellyer@uk.ibm.com>
 Chris Araman <chris.araman@fuze.com>
+Vladimir Matveev <vladima@microsoft.com>
+Jason Madden <jamadden@gmail.com>
+Jamie Davis <davisjam@vt.edu>
+Daniel Kahn Gillmor <dkg@fifthhorseman.net>
+Keane <erich.keane@intel.com>
+James McCoy <jamessan@jamessan.com>
+Bernardo Ramos <berna.gensis@gmail.com>
+Juan Cruz Viotti <jviotti@openmailbox.org>