Release 0.3.0 (#11)

chore: update version to 0.3.0 and dependencies

- Bump package version from 0.3.0-alpha.4 to 0.3.0
- Update rollup from 4.53.5 to 4.54.0
- Upgrade @aws-sdk/client-dynamodb and @aws-sdk/lib-dynamodb to 3.956.0

Author: mwarman