Bump rollup from 2.70.0 to 2.79.2 in /react-express-mongodb/frontend

Bumps [rollup](https://github.com/rollup/rollup) from 2.70.0 to 2.79.2.
- [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/v2.70.0...v2.79.2)

---
updated-dependencies:
- dependency-name: rollup
  dependency-type: indirect
...

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

react-express-mongodb/frontend/package-lock.json

@@ -10676,9 +10676,9 @@
       }
     },
     "rollup": {
-      "version": "2.70.0",
-      "resolved": "https://registry.npmjs.org/rollup/-/rollup-2.70.0.tgz",
-      "integrity": "sha512-iEzYw+syFxQ0X9RefVwhr8BA2TNJsTaX8L8dhyeyMECDbmiba+8UQzcu+xZdji0+JQ+s7kouQnw+9Oz5M19XKA==",
+      "version": "2.79.2",
+      "resolved": "https://registry.npmjs.org/rollup/-/rollup-2.79.2.tgz",
+      "integrity": "sha512-fS6iqSPZDs3dr/y7Od6y5nha8dW1YnbgtsyotCVvoFGKbERG++CVRFv1meyGDE1SNItQA8BrnCw7ScdAhRJ3XQ==",
       "dev": true,
       "requires": {
         "fsevents": "~2.3.2"