fix(deps): update dependency moment to v2.28.0

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
moment (source)	dependencies	minor	2.27.0 -> 2.28.0

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Release Notes

moment/moment

### [`v2.28.0`](https://togithub.com/moment/moment/blob/master/CHANGELOG.md#​2280-See-full-changelog-httpsgistgithubcommarwahaha028fd6c2b2470b2804857cfd63c0e94f) [Compare Source](https://togithub.com/moment/moment/compare/2.27.0...2.28.0) - Release Sept 13, 2020 Fix bug where .format() modifies original instance, and locale updates

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