small change to init kwargs correctly

[jgriesfeller]

Change Summary

small 2 line change to init kwargs correctly. Necessary since the parallelization calls the reading directly for caching

Related issue number

fix #1197

Checklist

• Start with a draft-PR
• The PR title is a good summary of the changes
• PR is set to AeroTools and a tentative milestone
• Documentation reflects the changes where applicable
• Tests for the changes exist where applicable
• Tests pass locally
• Tests pass on CI
• At least 1 reviewer is selected
• Make PR ready to review

[codecov]

Codecov Report

Attention: Patch coverage is 66.66667% with 1 line in your changes missing coverage. Please review.

Project coverage is 79.31%. Comparing base (ac80b76) to head (468cce5).
Report is 511 commits behind head on main-dev.

Files with missing lines	Patch %	Lines
pyaerocom/io/pyaro/read_pyaro.py	66.66%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##           main-dev    #1199      +/-   ##
============================================
- Coverage     79.31%   79.31%   -0.01%     
============================================
  Files           131      131              
  Lines         20230    20231       +1     
============================================
  Hits          16046    16046              
- Misses         4184     4185       +1     

Flag	Coverage Δ
unittests	79.31% <66.66%> (-0.01%)	⬇️

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