build: update terser to version 4.6.6

Author: renovate-bot

packages/angular_devkit/build_angular/package.json

@@ -58,7 +58,7 @@
     "stylus": "0.54.7",
     "stylus-loader": "3.0.2",
     "tree-kill": "1.2.2",
-    "terser": "4.6.4",
+    "terser": "4.6.6",
     "terser-webpack-plugin": "2.3.5",
     "webpack": "4.42.0",
     "webpack-dev-middleware": "3.7.2",

yarn.lock

@@ -11120,7 +11120,16 @@ terser-webpack-plugin@^1.4.3:
     webpack-sources "^1.4.0"
     worker-farm "^1.7.0"
 
-terser@4.6.4, terser@^4.1.2, terser@^4.3.8, terser@^4.4.3:
+terser@4.6.6:
+  version "4.6.6"
+  resolved "https://registry.yarnpkg.com/terser/-/terser-4.6.6.tgz#da2382e6cafbdf86205e82fb9a115bd664d54863"
+  integrity sha512-4lYPyeNmstjIIESr/ysHg2vUPRGf2tzF9z2yYwnowXVuVzLEamPN1Gfrz7f8I9uEPuHcbFlW4PLIAsJoxXyJ1g==
+  dependencies:
+    commander "^2.20.0"
+    source-map "~0.6.1"
+    source-map-support "~0.5.12"
+
+terser@^4.1.2, terser@^4.3.8, terser@^4.4.3:
   version "4.6.4"
   resolved "https://registry.yarnpkg.com/terser/-/terser-4.6.4.tgz#40a0b37afbe5b57e494536815efa68326840fc00"
   integrity sha512-5fqgBPLgVHZ/fVvqRhhUp9YUiGXhFJ9ZkrZWD9vQtFBR4QIGTnbsb+/kKqSqfgp3WnBwGWAFnedGTtmX1YTn0w==