Update dependency rollup to v1.27.1

Author: renovate-bot

package.json

@@ -24,7 +24,7 @@
     "postcss-preset-env": "6.7.0",
     "postcss-syntax": "0.36.2",
     "prettier": "1.17.0",
-    "rollup": "1.26.0",
+    "rollup": "1.27.1",
     "rollup-plugin-node-resolve": "4.0.1",
     "rollup-pluginutils": "2.5.0",
     "serve": "11.1.0",

yarn.lock

@@ -4109,10 +4109,10 @@ rollup-pluginutils@2.5.0:
     estree-walker "^0.6.0"
     micromatch "^3.1.10"
 
-rollup@1.26.0:
-  version "1.26.0"
-  resolved "https://registry.yarnpkg.com/rollup/-/rollup-1.26.0.tgz#cf40fd5e1edc4d7f3d4235a0a43f1c2be1cf294b"
-  integrity sha512-5HljNYn9icFvXX+Oe97qY5TWvnWhKqgGT0HGeWWqFPx7w7+Anzg7dfHMtUif7YYy6QxAgynDSwK6uxbgcrVUxw==
+rollup@1.27.1:
+  version "1.27.1"
+  resolved "https://registry.yarnpkg.com/rollup/-/rollup-1.27.1.tgz#3f09a81be7f9869e18c42a852ec1a50ecc47561d"
+  integrity sha512-tRJcEYjJalj/wFiqM7GmynLeaKANS4CRPCYB8D7ylrl7Mrsmpgo6xuXE2v9K9EpX0kwFztAIwVltycA+Wr9b7Q==
   dependencies:
     "@types/estree" "*"
     "@types/node" "*"