build(deps): bump rollup from 2.11.2 to 2.12.0

Bumps [rollup](https://github.com/rollup/rollup) from 2.11.2 to 2.12.0.
- [Release notes](https://github.com/rollup/rollup/releases)
- [Changelog](https://github.com/rollup/rollup/blob/master/CHANGELOG.md)
- [Commits](rollup/rollup@v2.11.2...v2.12.0)

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

package.json

@@ -32,7 +32,7 @@
     "onchange": "^7.0.2",
     "prettier": "2.0.5",
     "pretty-quick": "^2.0.1",
-    "rollup": "^2.11.2",
+    "rollup": "^2.12.0",
     "rollup-plugin-babel": "^4.3.2",
     "rollup-plugin-commonjs": "^10.1.0",
     "rollup-plugin-node-resolve": "^5.2.0",

yarn.lock

@@ -5035,10 +5035,10 @@ rollup-pluginutils@^2.6.0, rollup-pluginutils@^2.8.1:
   dependencies:
     estree-walker "^0.6.1"
 
-rollup@^2.11.2:
-  version "2.11.2"
-  resolved "https://registry.yarnpkg.com/rollup/-/rollup-2.11.2.tgz#b1273ad3e43953d09807672f6b72d08f9f9bc008"
-  integrity sha512-pJT6mfH+/gh1sOWyNMAWxjbYGL5x2AfsaR0SWLRwq2e7vxOKt/0mBjtYDTVYF8JXxVzmnuDzA+EpsPLWt/oyrg==
+rollup@^2.12.0:
+  version "2.12.0"
+  resolved "https://registry.yarnpkg.com/rollup/-/rollup-2.12.0.tgz#12d49d1db23020f75184da725d064d3db5245678"
+  integrity sha512-vKwc/xFkZGM9DRai3Eztpr/4g0yYDgNKVq8tLXhq/aSLbR+/EVL6rTjEW9bgWgeYEIKoN66/5w2Bjv1gzyHR/w==
   optionalDependencies:
     fsevents "~2.1.2"