Enhance datastore DB test setup

[6543]

taken from #6391

in case sqlite is used in-memory it otherwise looses the schema ... this makes it more resistant

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 35.31%. Comparing base (e173bed) to head (27f0685).
⚠️ Report is 3 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #6450      +/-   ##
==========================================
+ Coverage   35.27%   35.31%   +0.03%     
==========================================
  Files         431      431              
  Lines       28778    28778              
==========================================
+ Hits        10152    10162      +10     
+ Misses      17694    17685       -9     
+ Partials      932      931       -1     

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