build: update core-js to version 3.1.2

Author: renovate-bot

packages/angular_devkit/build_angular/package.json

@@ -19,7 +19,7 @@
     "circular-dependency-plugin": "5.0.2",
     "clean-css": "4.2.1",
     "copy-webpack-plugin": "5.0.3",
-    "core-js": "3.1.1",
+    "core-js": "3.1.2",
     "file-loader": "3.0.1",
     "glob": "7.1.4",
     "istanbul-instrumenter-loader": "3.0.1",

yarn.lock

@@ -2615,10 +2615,10 @@ [email protected]:
     serialize-javascript "^1.7.0"
     webpack-log "^2.0.0"
 
-[email protected].1:
-  version "3.1.1"
-  resolved "https://registry.yarnpkg.com/core-js/-/core-js-3.1.1.tgz#502ba6e7c15300de20a372b390f9fc9039db76f2"
-  integrity sha512-OddJJmAMN6czmPEtp1ScHFWq4RXzH1iWJFGL8CZ6UcopeBzCMjo4Slv0UoLW2hhny1/wsDowm6xCmBCWQ1azkA==
+[email protected].2:
+  version "3.1.2"
+  resolved "https://registry.yarnpkg.com/core-js/-/core-js-3.1.2.tgz#2549a2cfb3ca1a5d851c9f7838e8b282cef2f3ba"
+  integrity sha512-3poRGjbu56leCtZCZCzCgQ7GcKOflDFnjWIepaPFUsM0IXUBrne10sl3aa2Bkcz3+FjRdIxBe9dAMhIJmEnQNA==
 
 core-js@^2.2.0, core-js@^2.4.0:
   version "2.5.7"