clean cache after tests

[bart1]

No description provided.

[codecov]

Codecov Report

❌ Patch coverage is 0% with 3 lines in your changes missing coverage. Please review.
✅ Project coverage is 92.31%. Comparing base (f23d668) to head (0eaf4e7).
⚠️ Report is 12 commits behind head on main.

Files with missing lines	Patch %	Lines
R/get_pvol_dk.R	0.00%	3 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #123   +/-   ##
=======================================
  Coverage   92.31%   92.31%           
=======================================
  Files          23       23           
  Lines        1458     1458           
=======================================
  Hits         1346     1346           
  Misses        112      112           

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