Bump moment from 2.28.0 to 2.29.1

Bumps [moment](https://github.com/moment/moment) from 2.28.0 to 2.29.1.
- [Release notes](https://github.com/moment/moment/releases)
- [Changelog](https://github.com/moment/moment/blob/develop/CHANGELOG.md)
- [Commits](moment/moment@2.28.0...2.29.1)

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

Author: dependabot-preview[bot]

package-lock.json

@@ -45,7 +45,7 @@
     "leaflet": "^1.6.0",
     "leaflet-blurred-location": "^1.5.1",
     "megamark": "3.3.0",
-    "moment": "~2.28.0",
+    "moment": "~2.29.1",
     "resig-class": "~1.0.0",
     "typeahead.js-browserify": "~1.0.7",
     "woofmark": "git://github.com/jywarren/woofmark.git#plots2",