Bump rollup from 2.15.0 to 2.16.1

Bumps [rollup](https://github.com/rollup/rollup) from 2.15.0 to 2.16.1.
- [Release notes](https://github.com/rollup/rollup/releases)
- [Changelog](https://github.com/rollup/rollup/blob/master/CHANGELOG.md)
- [Commits](rollup/rollup@v2.15.0...v2.16.1)

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

yarn.lock

@@ -5550,9 +5550,9 @@ rollup-pluginutils@^2.8.1:
     estree-walker "^0.6.1"
 
 rollup@^2.0.6:
-  version "2.15.0"
-  resolved "https://registry.yarnpkg.com/rollup/-/rollup-2.15.0.tgz#1324633188c7f82138bd3bdc99416009ee541f48"
-  integrity sha512-HAk4kyXiV5sdNDnbKWk5zBPnkX/DAgx09Kbp8rRIRDVsTUVN3vnSowR7ZHkV6/lAiE6c2TQ8HtYb72aCPGW4Jw==
+  version "2.16.1"
+  resolved "https://registry.yarnpkg.com/rollup/-/rollup-2.16.1.tgz#97805e88071e2c6727bd0b64904976d14495c873"
+  integrity sha512-UYupMcbFtoWLB6ZtL4hPZNUTlkXjJfGT33Mmhz3hYLNmRj/cOvX2B26ZxDQuEpwtLdcyyyraBGQ7EfzmMJnXXg==
   optionalDependencies:
     fsevents "~2.1.2"