update yarn.lock

Author: hsubox76

yarn.lock

@@ -9582,7 +9582,7 @@ graceful-fs@^4.1.6, graceful-fs@^4.2.0:
   resolved "https://registry.npmjs.org/graceful-fs/-/graceful-fs-4.2.9.tgz#041b05df45755e587a24942279b9d113146e1c96"
   integrity sha512-NtNxqUcXgpW2iMrfqSfR73Glt39K+BLwWsPs94yR63v45T0Wbej7eRmL5cWfwEgqXnmjQp3zaJTshdRW/qC2ZQ==
 
-graceful-fs@^4.2.10:
+graceful-fs@^4.2.10, graceful-fs@^4.2.9:
   version "4.2.11"
   resolved "https://registry.npmjs.org/graceful-fs/-/graceful-fs-4.2.11.tgz#4183e4e8bf08bb6e05bbb2f7d2e0c8f712ca40e3"
   integrity sha512-RbJ5/jmFcNNCcDV5o9eTnBLJ/HszWV0P73bc+Ff4nS/rJj+YaS6IGyiOL0VoBYX+l1Wrl3k63h/KrH+nhJ0XvQ==
@@ -18245,10 +18245,10 @@ webidl-conversions@^7.0.0:
   resolved "https://registry.npmjs.org/webidl-conversions/-/webidl-conversions-7.0.0.tgz#256b4e1882be7debbf01d05f0aa2039778ea080a"
   integrity sha512-VwddBukDzu71offAQR975unBIGqfKZpM+8ZX6ySk8nYhVoo5CYaZyzt3YBvYtRtO+aoGlqxPg/B87NGVZ/fu6g==
 
-webpack-dev-middleware@^3.7.0:
-  version "3.7.3"
-  resolved "https://registry.npmjs.org/webpack-dev-middleware/-/webpack-dev-middleware-3.7.3.tgz#0639372b143262e2b84ab95d3b91a7597061c2c5"
-  integrity sha512-djelc/zGiz9nZj/U7PTBi2ViorGJXEWo/3ltkPbDyxCXhhEXkW0ce99falaok4TPj+AsxLiXJR0EBOb0zh9fKQ==
+webpack-merge@^4.1.5:
+  version "4.2.2"
+  resolved "https://registry.npmjs.org/webpack-merge/-/webpack-merge-4.2.2.tgz#a27c52ea783d1398afd2087f547d7b9d2f43634d"
+  integrity sha512-TUE1UGoTX2Cd42j3krGYqObZbOD+xF7u28WB7tfUordytSjbWTIjK/8V0amkBfTYN4/pB/GIDlJZZ657BGG19g==
   dependencies:
     lodash "^4.17.15"