build: update terser to version 4.2.1 (#15435)

Author: renovate-bot

packages/angular_devkit/build_angular/package.json

@@ -52,7 +52,7 @@
     "stylus": "0.54.7",
     "stylus-loader": "3.0.2",
     "tree-kill": "1.2.1",
-    "terser": "4.2.0",
+    "terser": "4.2.1",
     "terser-webpack-plugin": "1.4.1",
     "webpack": "4.39.2",
     "webpack-dev-middleware": "3.7.0",

yarn.lock

@@ -11212,10 +11212,10 @@ [email protected], terser-webpack-plugin@^1.4.1:
     webpack-sources "^1.4.0"
     worker-farm "^1.7.0"
 
-[email protected].0:
-  version "4.2.0"
-  resolved "https://registry.yarnpkg.com/terser/-/terser-4.2.0.tgz#4b1b5f4424b426a7a47e80d6aae45e0d7979aef0"
-  integrity sha512-6lPt7lZdZ/13icQJp8XasFOwZjFJkxFFIb/N1fhYEQNoNI3Ilo3KABZ9OocZvZoB39r6SiIk/0+v/bt8nZoSeA==
+[email protected].1:
+  version "4.2.1"
+  resolved "https://registry.yarnpkg.com/terser/-/terser-4.2.1.tgz#1052cfe17576c66e7bc70fcc7119f22b155bdac1"
+  integrity sha512-cGbc5utAcX4a9+2GGVX4DsenG6v0x3glnDi5hx8816X1McEAwPlPgRtXPJzSBsbpILxZ8MQMT0KvArLuE0HP5A==
   dependencies:
     commander "^2.20.0"
     source-map "~0.6.1"