Python: Telemetry and observability follow-up (#833)
* updated telemetry work
* updated telemetry
* slight improvement
* updated tests
* fixes for telemetry
* fixes for mypy
* added settings setup to runner to avoid error
* streamline usage
* updated tests
* updated tests
* further refinement
* fix dumped item for otel
* removed enable_workflow_otel
* final fixes
* final fixes
* updated samples
* removed exporters
* fix tests
* fixed last import'
* fixed devui
Eduard van Valkenburg