Release v3.0.1

What's Changed

• Engine: Include missing required attributes for CapabilityStatement by @kennethmyhra in #1286
• deps: Upgrade MongoDB.Driver 3.8.1 -> 3.9.0 by @kennethmyhra in #1287

Additional context

This release is a bug fix for CapabilityStatement missing attributes with cardinality 1..1 when returned through the /metadata endpoint.

• STU3 missed the required attributes status and acceptUnknown.
• R4 missed the required attribute status.

Full Changelog: v3.0.0...v3.0.1