Bump brace-expansion from 1.1.18 to 1.1.21 (#85)

Automatic merge of Dependabot PR

Author: dependabot[bot]

yarn.lock

@@ -1924,9 +1924,9 @@ bower-endpoint-parser@0.2.2:
   integrity sha1-ALVlrb+rby01rd3pd+l5Yqy8s/Y=
 
 brace-expansion@^1.1.7:
-  version "1.1.18"
-  resolved "https://registry.yarnpkg.com/brace-expansion/-/brace-expansion-1.1.18.tgz#3ce74d89885136be1535341f8c3d4425c29a5cab"
-  integrity sha512-Edep/X9fGqVNmzKBVsDYIOtD+z1tuezV70LBjdCst9Tqu76lsnvRiZ6oTic1n+/BIwX6QDGAO94PN4N2SADvtw==
+  version "1.1.21"
+  resolved "https://registry.yarnpkg.com/brace-expansion/-/brace-expansion-1.1.21.tgz#edf4fab5c64d051aea5a8def49aba1c7522279f3"
+  integrity sha512-9zeA+KLZNNzglF2TPKRQEDyx6Yby7daAkuy8MiPzpXPsYDWi/DRM8jmwUDxokQjYqBpv5DgPiwD4h4ZZSy1Ujw==
   dependencies:
     balanced-match "^1.0.0"
     concat-map "0.0.1"