agentwrapper: allow setting the python interpreter

[Emantor]

Description
Similar to the prefix, allow setup of the python interpreter to allow users to use their own python environments.

Checklist

• Documentation for the feature
• PR has been tested
• Man pages have been regenerated

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 45.9%. Comparing base (d3c08b1) to head (dea04b3).
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@          Coverage Diff           @@
##           master   #1894   +/-   ##
======================================
  Coverage    45.9%   45.9%           
======================================
  Files         180     180           
  Lines       14496   14497    +1     
======================================
+ Hits         6666    6667    +1     
  Misses       7830    7830           

Flag	Coverage Δ
3.10	45.9% <100.0%> (+<0.1%)	⬆️
3.11	45.9% <100.0%> (+<0.1%)	⬆️
3.12	45.9% <100.0%> (+<0.1%)	⬆️
3.13	45.9% <100.0%> (+<0.1%)	⬆️
3.14	45.9% <100.0%> (+<0.1%)	⬆️

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