Redirect errors/tracebacks to the right logging stream

[gipert]

Closes #107.

@ggmarshall seems to work, try switching between console/dataflow handlers in the logging config. You can merge if it works.

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 23 lines in your changes missing coverage. Please review.

Project coverage is 42.70%. Comparing base (c7a281b) to head (767bd49).
Report is 6 commits behind head on main.

Files with missing lines	Patch %	Lines
workflow/src/legenddataflow/log.py	0.00%	23 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #114      +/-   ##
==========================================
- Coverage   43.54%   42.70%   -0.85%     
==========================================
  Files          18       18              
  Lines        1162     1185      +23     
==========================================
  Hits          506      506              
- Misses        656      679      +23     

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