Tests: Speedup local execution

[mringler]

see mringler#6

Also fixes a bug in tests/bin/setup.pgsql.sh, which should fix one of the errors in #1995

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 89.24%. Comparing base (3417fea) to head (ef6e175).
Report is 2 commits behind head on master.

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Additional details and impacted files

@@             Coverage Diff              @@
##             master    #2002      +/-   ##
============================================
- Coverage     89.25%   89.24%   -0.01%     
  Complexity     8065     8065              
============================================
  Files           232      232              
  Lines         24550    24550              
============================================
- Hits          21911    21910       -1     
- Misses         2639     2640       +1     

Flag	Coverage Δ
5-max	89.24% <ø> (-0.01%)	⬇️
7.4	89.24% <ø> (-0.01%)	⬇️
agnostic	68.56% <ø> (+<0.01%)	⬆️
mysql	69.67% <ø> (-0.14%)	⬇️
pgsql	69.73% <ø> (-0.12%)	⬇️
sqlite	67.65% <ø> (-0.14%)	⬇️

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