fixed a bug in the subject factory call
What's Changed
* Update _test.yml by kivel in https://github.com/Canadian-Light-Source/bluesky-nats/pull/7
* Subject factory fix by kivel in https://github.com/Canadian-Light-Source/bluesky-nats/pull/6
**Full Changelog**: https://github.com/Canadian-Light-Source/bluesky-nats/compare/v0.1.3...v0.1.4