Bump moment from 2.29.1 to 2.29.4

Bumps [moment](https://github.com/moment/moment) from 2.29.1 to 2.29.4.
- [Release notes](https://github.com/moment/moment/releases)
- [Changelog](https://github.com/moment/moment/blob/develop/CHANGELOG.md)
- [Commits](moment/moment@2.29.1...2.29.4)

---
updated-dependencies:
- dependency-name: moment
  dependency-type: direct:production
...

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

Author: dependabot[bot]

package-lock.json

@@ -42,7 +42,7 @@
     "mammoth": "^1.4.19",
     "mobx": "4.1.0",
     "mobx-angular": "^3.1.1",
-    "moment": "^2.29.1",
+    "moment": "^2.29.4",
     "ngx-cookie-service": "^2.3.0",
     "rxjs": "~6.5.4",
     "zone.js": "~0.10.2"