CI: run db tests

[1-leo]

linked issue: #359

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 72.39%. Comparing base (1dbb853) to head (fdd70d1).

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #384      +/-   ##
==========================================
- Coverage   72.41%   72.39%   -0.02%     
==========================================
  Files         144      144              
  Lines        5593     5593              
==========================================
- Hits         4050     4049       -1     
- Misses       1543     1544       +1     

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