What's Changed
* Add optional docker client to install agent api. by deadly-panda in https://github.com/Ostorlab/ostorlab/pull/471
* Cast agent arguments received from nats to their corresponding types. by deadly-panda in https://github.com/Ostorlab/ostorlab/pull/472
* Add login to private registry, & run the start agent callback in an async context. by deadly-panda in https://github.com/Ostorlab/ostorlab/pull/473
* Add registry credentials to scanner conf. by deadly-panda in https://github.com/Ostorlab/ostorlab/pull/470
* Typo fix: logger error wrong call. by deadly-panda in https://github.com/Ostorlab/ostorlab/pull/475
* Update version for next release. by deadly-panda in https://github.com/Ostorlab/ostorlab/pull/476
**Full Changelog**: https://github.com/Ostorlab/ostorlab/compare/v0.15.5...v0.15.6