Bump rollup from 2.8.0 to 2.9.1 (#30789)

Bumps [rollup](https://github.com/rollup/rollup) from 2.8.0 to 2.9.1.
- [Release notes](https://github.com/rollup/rollup/releases)
- [Changelog](https://github.com/rollup/rollup/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rollup/rollup/compare/v2.8.0...v2.9.1

)

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

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>
Co-authored-by: XhmikosR <xhmikosr@gmail.com>

package-lock.json

@@ -10056,9 +10056,9 @@
       }
     },
     "rollup": {
-      "version": "2.8.0",
-      "resolved": "https://registry.npmjs.org/rollup/-/rollup-2.8.0.tgz",
-      "integrity": "sha512-hyjpreMA0BTNrO68o4wCtcktwYTK8o1UtauOqsPniwDGzN2PvNaKmwa/RHmjNHJMrt6ItY2C7XjpT7TDf6WmJw==",
+      "version": "2.9.1",
+      "resolved": "https://registry.npmjs.org/rollup/-/rollup-2.9.1.tgz",
+      "integrity": "sha512-kEZn76R0j+WD4AActu5Np4RShNlewTtJhdUaWNtHwHnAA8AOapyXgH6O7NL2RkcQLHnl49oz1xW1VrDcu5yP+Q==",
       "dev": true,
       "requires": {
         "fsevents": "~2.1.2"

package.json

@@ -128,7 +128,7 @@
     "npm-run-all": "^4.1.5",
     "popper.js": "^1.16.0",
     "postcss-cli": "^7.1.1",
-    "rollup": "^2.8.0",
+    "rollup": "^2.9.1",
     "rollup-plugin-babel": "^4.4.0",
     "rollup-plugin-istanbul": "^2.0.1",
     "serve": "^11.3.0",