Bump rollup from 1.32.1 to 2.79.2 in /controls/ej2

Bumps [rollup](https://github.com/rollup/rollup) from 1.32.1 to 2.79.2.
- [Release notes](https://github.com/rollup/rollup/releases)
- [Changelog](https://github.com/rollup/rollup/blob/master/CHANGELOG.md)
- [Commits](rollup/rollup@v1.32.1...v2.79.2)

---
updated-dependencies:
- dependency-name: rollup
  dependency-type: direct:development
...

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

Author: dependabot[bot]

Diff for: controls/ej2/package.json

@@ -63,7 +63,7 @@
 		"gulp-util": "^3.0.8",
 		"postcss": "^8.4.14",
 		"readline-sync": "^1.4.10",
-		"rollup": "1.32.1",
+		"rollup": "2.79.2",
 		"rollup-plugin-commonjs": "10.1.0",
 		"rollup-plugin-node-resolve": "5.2.0",
 		"rollup-plugin-sourcemaps": "0.6.3",