Update lock file

Author: Julien Heller

yarn.lock

@@ -1051,10 +1051,10 @@ delegates@^1.0.0:
   resolved "https://registry.yarnpkg.com/delegates/-/delegates-1.0.0.tgz#84c6e159b81904fdca59a0ef44cd870d31250f9a"
   integrity sha1-hMbhWbgZBP3KWaDvRM2HDTElD5o=
 
-[email protected].1-ff84e5a.0:
-  version "4.0.1-ff84e5a.0"
-  resolved "https://registry.yarnpkg.com/demux/-/demux-4.0.1-ff84e5a.0.tgz#7cec648ab7800c79e8cc07626869b18f4342dda6"
-  integrity sha512-w33MpYEbsJ25Fmiu+R2RawVuoHp3nUS/XIM8IjmWmrsHuaUP+JsH7hWPLzYLUaSgeuRbsgmCwwhrFsChRa8k+A==
+[email protected]:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/demux/-/demux-4.0.0.tgz#f0803107b3588071afeb5cc57e1cdddf354a1e80"
+  integrity sha512-wgugBOMDJciL0b2+fpy2L1ysza63Q1l72rPycc/Sdra7rXrphCTQS9M/v1e1NwMXNS60iDdp5uKEIKl/CYUcKQ==
   dependencies:
     bunyan "1.8.12"
     express "4.16.4"