Release 4.0.0 - NWS Launch

What's Changed

• feature/migrate-to-aws-sdk-v3 by @pwadmore-ea in #87
• Fix/ni 93 ni 94 refactor sns notifications by @pwadmore-ea in #88
• feature/NI-102-dependency-updates by @pwadmore-ea in #89

Full Changelog: 3.1.0...4.0.0