build: update rollup to version 2.18.1

Author: renovate-bot

packages/angular_devkit/build_angular/package.json

@@ -50,7 +50,7 @@
     "regenerator-runtime": "0.13.5",
     "resolve-url-loader": "3.1.1",
     "rimraf": "3.0.2",
-    "rollup": "2.18.0",
+    "rollup": "2.18.1",
     "rxjs": "6.5.5",
     "sass": "1.26.9",
     "sass-loader": "8.0.2",

yarn.lock

@@ -11489,10 +11489,10 @@ rollup-plugin-sourcemaps@^0.6.0:
     "@rollup/pluginutils" "^3.0.9"
     source-map-resolve "^0.6.0"
 
-rollup@2.18.0:
-  version "2.18.0"
-  resolved "https://registry.yarnpkg.com/rollup/-/rollup-2.18.0.tgz#f03801e5dd01415e5675dcf61c824ea493ca0392"
-  integrity sha512-LhuQQp3WpnHo3HlKCRrdMXpB6jdLsGOoXXSfMjbv74s5VdV3WZhkYJT0Z6w/EH3UgPH+g/S9T4GJrKW/5iD8TA==
+rollup@2.18.1:
+  version "2.18.1"
+  resolved "https://registry.yarnpkg.com/rollup/-/rollup-2.18.1.tgz#1662c679da5dfc89ec6fda75951a2bcca1a4f77d"
+  integrity sha512-w4X77ADA+WTGlapC8Z6yggdJtODw3SBl6R2LSkA7ZW5MtdkgcB7sfaSD1UWyx8diXbMcGIb0eI9gCx/dyqOgNQ==
   optionalDependencies:
     fsevents "~2.1.2"