BUG: append subpool logging

[UranusSeven]

What do these changes do?

Subpools created by append_subpool do not have correct logging config.

Related issue number

Fixes #xxxx

Check code requirements

• [ ] tests added / passed (if needed)
• [ ] Ensure all linting tests pass

[codecov[bot]]

Codecov Report

Merging #77 (498274a) into main (17881dd) will decrease coverage by 0.24%. The diff coverage is n/a.

@@            Coverage Diff             @@
##             main      #77      +/-   ##
==========================================
- Coverage   89.35%   89.12%   -0.24%     
==========================================
  Files          48       48              
  Lines        4012     4008       -4     
  Branches      764      763       -1     
==========================================
- Hits         3585     3572      -13     
- Misses        344      351       +7     
- Partials       83       85       +2     

Flag	Coverage Δ
unittests	88.94% <ø> (-0.24%)	:arrow_down:

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Files Changed	Coverage Δ
python/xoscar/backends/indigen/pool.py	95.39% <ø> (+0.82%)	:arrow_up:

... and 3 files with indirect coverage changes