Bump moment from 2.18.1 to 2.29.4

Bumps [moment](https://github.com/moment/moment) from 2.18.1 to 2.29.4.
- [Release notes](https://github.com/moment/moment/releases)
- [Changelog](https://github.com/moment/moment/blob/develop/CHANGELOG.md)
- [Commits](https://github.com/moment/moment/compare/2.18.1...2.29.4)

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

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

package.json

@@ -29,7 +29,7 @@
     "google-spreadsheet": "^2.0.4",
     "joi": "^10.6.0",
     "lodash": "^3.10.1",
-    "moment": "^2.18.1",
+    "moment": "^2.29.4",
     "morgan": "^1.5.1",
     "newrelic": "^1.18.0",
     "node-twitter": "0.5.2",