build(deps-dev): 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>

Author: dependabot-preview[bot]

package.json

@@ -92,7 +92,7 @@
     "nightwatch": "^1.3.6",
     "nightwatch-helpers": "^1.2.0",
     "prettier": "^2.0.5",
-    "rollup": "^2.15.0",
+    "rollup": "^2.16.1",
     "rollup-plugin-terser": "^6.1.0",
     "rollup-plugin-typescript2": "^0.27.1",
     "selenium-server": "^3.141.59",

yarn.lock

@@ -8919,10 +8919,10 @@ rollup-plugin-typescript2@^0.27.1:
     resolve "1.15.1"
     tslib "1.11.2"
 
-rollup@^2.15.0:
-  version "2.15.0"
-  resolved "https://registry.yarnpkg.com/rollup/-/rollup-2.15.0.tgz#1324633188c7f82138bd3bdc99416009ee541f48"
-  integrity sha512-HAk4kyXiV5sdNDnbKWk5zBPnkX/DAgx09Kbp8rRIRDVsTUVN3vnSowR7ZHkV6/lAiE6c2TQ8HtYb72aCPGW4Jw==
+rollup@^2.16.1:
+  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"