database_dump/gen_scripts: Use async queries

[Turbo87]

One less codepath using the sync database connection pool :)

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 89.22%. Comparing base (3fa4876) to head (c85fabf).
Report is 5 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #10011      +/-   ##
==========================================
+ Coverage   89.20%   89.22%   +0.01%     
==========================================
  Files         295      295              
  Lines       30766    30770       +4     
==========================================
+ Hits        27444    27453       +9     
+ Misses       3322     3317       -5     

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