.mailmap in libuv-3.2.0

- old
+ new

@@ -39,5 +39,6 @@
 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>
+jBarz <jBarz@users.noreply.github.com> <jbarz@users.noreply.github.com>