tests: Fix, script to help run single tests

[dpgaspar]

CATEGORY

• Bug Fix
• Enhancement (new features, refinement)
• Refactor
• Add tests
• Build / Development Environment
• Documentation

SUMMARY

If the developer did not have an already test database created the script would just fail

ADDITIONAL INFORMATION

• Has associated issue:
• Changes UI
• Requires DB Migration.
• Confirm DB Migration upgrade and downgrade tested.
• Introduces new feature or API
• Removes existing feature or API

REVIEWERS

[codecov-io]

Codecov Report

Merging #9779 into master will decrease coverage by 0.00%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #9779      +/-   ##
==========================================
- Coverage   70.78%   70.77%   -0.01%     
==========================================
  Files         587      587              
  Lines       30460    30460              
  Branches     3121     3121              
==========================================
- Hits        21561    21558       -3     
- Misses       8785     8788       +3     
  Partials      114      114              

Flag	Coverage Δ
#cypress	53.66% <ø> (-0.08%)	⬇️
#javascript	59.00% <ø> (ø)
#python	70.93% <ø> (ø)

Impacted Files	Coverage Δ
...rontend/src/SqlLab/components/QueryAutoRefresh.jsx	65.90% <0.00%> (-6.82%)	⬇️
superset-frontend/src/SqlLab/actions/sqlLab.js	66.81% <0.00%> (ø)

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