Bump rollup from 1.26.2 to 1.27.8

Bumps [rollup](https://github.com/rollup/rollup) from 1.26.2 to 1.27.8.
- [Release notes](https://github.com/rollup/rollup/releases)
- [Changelog](https://github.com/rollup/rollup/blob/master/CHANGELOG.md)
- [Commits](rollup/rollup@v1.26.2...v1.27.8)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Author: dependabot-preview[bot]

package.json

@@ -34,7 +34,7 @@
     "eslint": "^6.7.2",
     "husky": "^3.1.0",
     "jsdom": "^15.2.0",
-    "rollup": "^1.26.2",
+    "rollup": "^1.27.8",
     "rollup-plugin-node-resolve": "^5.0.0",
     "rollup-plugin-terser": "^5.1.2",
     "tap": "^14.10.2"

yarn.lock

@@ -2575,10 +2575,10 @@ rollup-pluginutils@^2.8.1:
   dependencies:
     estree-walker "^0.6.1"
 
-rollup@^1.26.2:
-  version "1.26.2"
-  resolved "https://registry.yarnpkg.com/rollup/-/rollup-1.26.2.tgz#33d1ad23ee94aff1057448bae267be51dab4bdc1"
-  integrity sha512-TLM8hlYP85TFFptYlXmr2VnhCLA8GaYXG4LBdWsHu9oBH/Wm5MMPAE9wsAnohfV21Dqq0ZvRHdmsKXomshaDSg==
+rollup@^1.27.8:
+  version "1.27.8"
+  resolved "https://registry.yarnpkg.com/rollup/-/rollup-1.27.8.tgz#94288a957af9f4c2380b73a17494d87705997d0f"
+  integrity sha512-EVoEV5rAWl+5clnGznt1KY8PeVkzVQh/R0d2s3gHEkN7gfoyC4JmvIVuCtPbYE8NM5Ep/g+nAmvKXBjzaqTsHA==
   dependencies:
     "@types/estree" "*"
     "@types/node" "*"