Update yarn lock

yarn.lock

@@ -3761,6 +3761,17 @@ copy-webpack-plugin@^4.0.1:
     p-limit "^1.0.0"
     serialize-javascript "^1.4.0"
 
+copyfiles@^1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/copyfiles/-/copyfiles-1.2.0.tgz#a8da3ac41aa2220ae29bd3c58b6984294f2c593c"
+  dependencies:
+    glob "^7.0.5"
+    ltcdr "^2.2.1"
+    minimatch "^3.0.3"
+    mkdirp "^0.5.1"
+    noms "0.0.0"
+    through2 "^2.0.1"
+
 copyfiles@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/copyfiles/-/copyfiles-2.0.0.tgz#bbd78bb78e8fd6db5c67adf54249317b24560f2a"
@@ -6013,7 +6024,7 @@ ganache-core@0xProject/ganache-core#monorepo-dep:
     ethereumjs-tx "0xProject/ethereumjs-tx#fake-tx-include-signature-by-default"
     ethereumjs-util "^5.2.0"
     ethereumjs-vm "2.3.5"
-    ethereumjs-wallet "~0.6.0"
+    ethereumjs-wallet "0.6.0"
     fake-merkle-patricia-tree "~1.0.1"
     heap "~0.2.6"
     js-scrypt "^0.2.0"
@@ -8552,6 +8563,10 @@ lru-cache@~2.2.1:
   version "2.2.4"
   resolved "https://registry.yarnpkg.com/lru-cache/-/lru-cache-2.2.4.tgz#6c658619becf14031d0d0b594b16042ce4dc063d"
 
+ltcdr@^2.2.1:
+  version "2.2.1"
+  resolved "https://registry.yarnpkg.com/ltcdr/-/ltcdr-2.2.1.tgz#5ab87ad1d4c1dab8e8c08bbf037ee0c1902287cf"
+
 ltgt@^2.1.2, ltgt@~2.2.0:
   version "2.2.1"
   resolved "https://registry.yarnpkg.com/ltgt/-/ltgt-2.2.1.tgz#f35ca91c493f7b73da0e07495304f17b31f87ee5"