Bump rollup from 2.67.3 to 2.68.0

Bumps [rollup](https://github.com/rollup/rollup) from 2.67.3 to 2.68.0.
- [Release notes](https://github.com/rollup/rollup/releases)
- [Changelog](https://github.com/rollup/rollup/blob/master/CHANGELOG.md)
- [Commits](rollup/rollup@v2.67.3...v2.68.0)

---
updated-dependencies:
- dependency-name: rollup
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

package.json

@@ -77,7 +77,7 @@
     "puppeteer": "^13.3.2",
     "react": "^17.0.2",
     "react-dom": "^17.0.2",
-    "rollup": "^2.67.3",
+    "rollup": "^2.68.0",
     "rollup-plugin-terser": "^7.0.2",
     "sinon": "^13.0.1",
     "sinon-chai": "^3.7.0",