Bump moment from 2.24.0 to 2.29.4

Bumps [moment](https://github.com/moment/moment) from 2.24.0 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@2.24.0...2.29.4)

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

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

package.json

@@ -57,7 +57,7 @@
     "metascraper": "^1.0.6",
     "meteor-node-stubs": "^0.2.3",
     "mingo": "^0.8.1",
-    "moment": "^2.13.0",
+    "moment": "^2.29.4",
     "prop-types": "^15.6.0",
     "react": "^16.4.1",
     "react-addons-pure-render-mixin": "^15.4.1",