chore(docs): update tox testing run to relevant python env

[amitmiran137]

SUMMARY

BEFORE/AFTER SCREENSHOTS OR ANIMATED GIF

TEST PLAN

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

[codecov-io]

Codecov Report

Merging #12748 (33d249e) into master (0fed1e0) will increase coverage by 0.82%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master   #12748      +/-   ##
==========================================
+ Coverage   66.89%   67.71%   +0.82%     
==========================================
  Files        1022     1023       +1     
  Lines       49994    51644    +1650     
  Branches     4892     5049     +157     
==========================================
+ Hits        33442    34970    +1528     
- Misses      16427    16553     +126     
+ Partials      125      121       -4     

Flag	Coverage Δ
cypress	51.35% <ø> (+0.43%)	⬆️
javascript	61.99% <ø> (+0.65%)	⬆️
python	65.04% <ø> (+0.96%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
...et-frontend/src/components/Menu/LanguagePicker.tsx	62.50% <0.00%> (-6.74%)	⬇️
superset/db_engine_specs/presto.py	82.25% <0.00%> (-6.28%)	⬇️
...rontend/src/explore/components/DatasourcePanel.tsx	81.25% <0.00%> (-1.36%)	⬇️
superset/models/core.py	88.58% <0.00%> (-0.28%)	⬇️
superset/commands/utils.py	100.00% <0.00%> (ø)
superset-frontend/src/common/components/index.tsx	100.00% <0.00%> (ø)
...perset-frontend/src/dashboard/containers/Chart.jsx	100.00% <0.00%> (ø)
...et-frontend/src/dashboard/containers/Dashboard.jsx	100.00% <0.00%> (ø)
...-frontend/src/common/components/common.stories.tsx	0.00% <0.00%> (ø)
...src/dashboard/util/activeDashboardNativeFilters.ts	96.42% <0.00%> (ø)
... and 32 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 0fed1e0...33d249e. Read the comment docs.

[villebro]

LGTM. We should revisit this at some point and remove implicitly running sqlite in favor of using postgres or mysql in a properly containerized test environment.