build: update terser to version 4.6.12

Author: renovate-bot

packages/angular_devkit/build_angular/package.json

@@ -60,7 +60,7 @@
     "style-loader": "1.1.4",
     "stylus": "0.54.7",
     "stylus-loader": "3.0.2",
-    "terser": "4.6.11",
+    "terser": "4.6.12",
     "terser-webpack-plugin": "2.3.5",
     "tree-kill": "1.2.2",
     "webpack": "4.43.0",

yarn.lock

@@ -11611,10 +11611,10 @@ terser-webpack-plugin@^1.4.3:
     webpack-sources "^1.4.0"
     worker-farm "^1.7.0"
 
-terser@4.6.11:
-  version "4.6.11"
-  resolved "https://registry.yarnpkg.com/terser/-/terser-4.6.11.tgz#12ff99fdd62a26de2a82f508515407eb6ccd8a9f"
-  integrity sha512-76Ynm7OXUG5xhOpblhytE7X58oeNSmC8xnNhjWVo8CksHit0U0kO4hfNbPrrYwowLWFgM2n9L176VNx2QaHmtA==
+terser@4.6.12:
+  version "4.6.12"
+  resolved "https://registry.yarnpkg.com/terser/-/terser-4.6.12.tgz#44b98aef8703fdb09a3491bf79b43faffc5b4fee"
+  integrity sha512-fnIwuaKjFPANG6MAixC/k1TDtnl1YlPLUlLVIxxGZUn1gfUx2+l3/zGNB72wya+lgsb50QBi2tUV75RiODwnww==
   dependencies:
     commander "^2.20.0"
     source-map "~0.6.1"