docs(BH#109): Athena URI spec fix

[rusackas]

SUMMARY

BEFORE/AFTER SCREENSHOTS OR ANIMATED GIF

Someone reported the Athena driver being broken/cut off. I found the missing bits on Stack Overflow and I'm posting them here. Hopefully this is correct, but we would need an Athena user to test (there are none on the rolodex

TESTING INSTRUCTIONS

ADDITIONAL INFORMATION

• Has associated issue:
• Required feature flags:
• Changes UI
• Includes DB Migration (follow approval process in SIP-59)
  • Migration is atomic, supports rollback & is backwards-compatible
  • Confirm DB migration upgrade and downgrade tested
  • Runtime estimates and downtime expectations provided
• Introduces new feature or API
• Removes existing feature or API

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (e7797b6) 69.08% compared to head (05e8011) 69.07%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #26044      +/-   ##
==========================================
- Coverage   69.08%   69.07%   -0.02%     
==========================================
  Files        1941     1941              
  Lines       75892    75892              
  Branches     8443     8443              
==========================================
- Hits        52431    52420      -11     
- Misses      21286    21297      +11     
  Partials     2175     2175              

Flag	Coverage Δ
hive	53.66% <ø> (ø)
javascript	56.27% <ø> (ø)
mysql	?
postgres	78.26% <ø> (ø)
presto	53.61% <ø> (ø)
python	82.88% <ø> (-0.04%)	⬇️
sqlite	76.91% <ø> (ø)
unit	55.73% <ø> (ø)

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[villebro]

LGTM - confirmed that this is the connection string Google gives + the one we have in the dedicated Athena section.