Bump rollup from 0.62.0 to 2.33.0

Bumps [rollup](https://github.com/rollup/rollup) from 0.62.0 to 2.33.0.
- [Release notes](https://github.com/rollup/rollup/releases)
- [Changelog](https://github.com/rollup/rollup/blob/master/CHANGELOG.md)
- [Commits](rollup/rollup@v0.62.0...v2.33.0)

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

Author: dependabot-preview[bot]

package-lock.json

@@ -14,7 +14,7 @@
     "babel-plugin-external-helpers": "^6.22.0",
     "babel-plugin-transform-object-rest-spread": "^6.26.0",
     "babel-preset-env": "^1.7.0",
-    "rollup": "^0.62.0",
+    "rollup": "^2.33.0",
     "rollup-plugin-babel": "^3.0.7",
     "rollup-plugin-node-resolve": "^3.3.0"
   },