RedBeat 2.1.0
- BREAKING, drop for support for EOL Python < 3.8
- log message cleanup, thanks @joekohlsdorf
- ensure lock is owned before releasing, fixing #223, thanks @michaelbukachi
- fix #238, #208, failure to aquire lock on startup leads to multiple task executions, thanks @Junzki, @nicklyra, @nigel-gott
- Add options support for RedBeatSchedulerEntry, thanks @anton-petrov