Release async-nats v0.20.0

Overview

This release focuses on KV and 2.9 nats-server features.

Added

• Add Key Value by @Jarema and @caspervonb in #586
• Add Direct get by @Jarema in #636
• Add timeout to request & request builder by @Jarema in #616
• Add memory storage option to consumers by @Jarema in #638
• Add Consumer name by @Jarema in #637

Fixed

• Fix heartbeat typo by @Jarema in #630

What's Changed

• Headers refactor by @Jarema in #629
• Use new Consumer API by @Jarema in #637

Full Changelog: async-nats/v0.19.0...async-nats/v0.20.0