Bump rollup from 1.20.2 to 1.20.3

Bumps [rollup](https://github.com/rollup/rollup) from 1.20.2 to 1.20.3.
- [Release notes](https://github.com/rollup/rollup/releases)
- [Changelog](https://github.com/rollup/rollup/blob/master/CHANGELOG.md)
- [Commits](rollup/rollup@v1.20.2...v1.20.3)

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

Author: dependabot-preview[bot]

yarn.lock

@@ -4538,9 +4538,9 @@ rollup-pluginutils@^2.8.1:
     estree-walker "^0.6.1"
 
 rollup@^1.18.0:
-  version "1.20.2"
-  resolved "https://registry.yarnpkg.com/rollup/-/rollup-1.20.2.tgz#0e1be13cb5de244c9c463027092f7c93461558b9"
-  integrity sha512-pF4jFzNWMUuudIAeiTgOcSxn8XkBN2Y2/IwPR7iL/IZ8k9RwoLyp2QwNWiYT+HF537zwpmzZHTBYw345H9vq1A==
+  version "1.20.3"
+  resolved "https://registry.yarnpkg.com/rollup/-/rollup-1.20.3.tgz#6243f6c118ca05f56b2d9433112400cd834a1eb8"
+  integrity sha512-/OMCkY0c6E8tleeVm4vQVDz24CkVgvueK3r8zTYu2AQNpjrcaPwO9hE+pWj5LTFrvvkaxt4MYIp2zha4y0lRvg==
   dependencies:
     "@types/estree" "0.0.39"
     "@types/node" "^12.7.2"