chore(package): update lockfile yarn.lock

Author: greenkeeper[bot]

yarn.lock

@@ -1144,7 +1144,7 @@ isstream@~0.1.2:
   version "0.1.2"
   resolved "https://registry.yarnpkg.com/isstream/-/isstream-0.1.2.tgz#47e63f7af55afa6f92e1500e690eb8b8529c099a"
 
-jest-worker@^24.0.0:
+jest-worker@^24.6.0:
   version "24.6.0"
   resolved "https://registry.yarnpkg.com/jest-worker/-/jest-worker-24.6.0.tgz#7f81ceae34b7cde0c9827a6980c35b7cdc0161b3"
   integrity sha512-jDwgW5W9qGNvpI1tNnvajh0a5IE/PuGLFmHk6aR/BZFz8tSgGw17GsDPXAJ6p91IvYDjOw8GpFbvvZGAK+DPQQ==
@@ -1763,15 +1763,15 @@ rollup-plugin-node-resolve@^5.0.0:
     resolve "^1.10.1"
     rollup-pluginutils "^2.7.0"
 
-rollup-plugin-terser@^4.0.4:
-  version "4.0.4"
-  resolved "https://registry.yarnpkg.com/rollup-plugin-terser/-/rollup-plugin-terser-4.0.4.tgz#6f661ef284fa7c27963d242601691dc3d23f994e"
-  integrity sha512-wPANT5XKVJJ8RDUN0+wIr7UPd0lIXBo4UdJ59VmlPCtlFsE20AM+14pe+tk7YunCsWEiuzkDBY3QIkSCjtrPXg==
+rollup-plugin-terser@^5.0.0:
+  version "5.0.0"
+  resolved "https://registry.yarnpkg.com/rollup-plugin-terser/-/rollup-plugin-terser-5.0.0.tgz#ac50fdb703b580447a7e6b1692aeed515a6be8cf"
+  integrity sha512-W+jJ4opYnlmNyVW0vtRufs+EGf68BIJ7bnOazgz8mgz8pA9lUyrEifAhPs5y9M16wFeAyBGaRjKip4dnFBtXaw==
   dependencies:
     "@babel/code-frame" "^7.0.0"
-    jest-worker "^24.0.0"
-    serialize-javascript "^1.6.1"
-    terser "^3.14.1"
+    jest-worker "^24.6.0"
+    serialize-javascript "^1.7.0"
+    terser "^4.0.0"
 
 rollup-pluginutils@^2.7.0:
   version "2.7.1"
@@ -1836,7 +1836,7 @@ semver-compare@^1.0.0:
   version "5.6.0"
   resolved "https://registry.yarnpkg.com/semver/-/semver-5.6.0.tgz#7e74256fbaa49c75aa7c7a205cc22799cac80004"
 
-serialize-javascript@^1.6.1:
+serialize-javascript@^1.7.0:
   version "1.7.0"
   resolved "https://registry.yarnpkg.com/serialize-javascript/-/serialize-javascript-1.7.0.tgz#d6e0dfb2a3832a8c94468e6eb1db97e55a192a65"
   integrity sha512-ke8UG8ulpFOxO8f8gRYabHQe/ZntKlcig2Mp+8+URDP1D8vJZ0KUt7LYo07q25Z/+JVSgpr/cui9PIp5H6/+nA==
@@ -2100,10 +2100,10 @@ tape@^4.9.0:
     string.prototype.trim "~1.1.2"
     through "~2.3.8"
 
-terser@^3.14.1:
-  version "3.17.0"
-  resolved "https://registry.yarnpkg.com/terser/-/terser-3.17.0.tgz#f88ffbeda0deb5637f9d24b0da66f4e15ab10cb2"
-  integrity sha512-/FQzzPJmCpjAH9Xvk2paiWrFq+5M6aVOf+2KRbwhByISDX/EujxsK+BAvrhb6H+2rtrLCHK9N01wO014vrIwVQ==
+terser@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/terser/-/terser-4.0.0.tgz#ef356f6f359a963e2cc675517f21c1c382877374"
+  integrity sha512-dOapGTU0hETFl1tCo4t56FN+2jffoKyER9qBGoUFyZ6y7WLoKT0bF+lAYi6B6YsILcGF3q1C2FBh8QcKSCgkgA==
   dependencies:
     commander "^2.19.0"
     source-map "~0.6.1"