chore(docs): add version for postgres when doing brew install

[rusackas]

SUMMARY

Hopefully this change to the docs points users toward the right thing to do here! This should resolve an error that I (and apparently others) ran into. Fixes #22897

Added bycatch: fixing a link that was breaking builds. Apparently you can't use a relative link that goes outside the docusaurus folder, so I just used a link to the referenced file on the repo.

BEFORE/AFTER SCREENSHOTS OR ANIMATED GIF

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

Merging #24025 (d806846) into master (d96b72d) will increase coverage by 0.03%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master   #24025      +/-   ##
==========================================
+ Coverage   68.18%   68.22%   +0.03%     
==========================================
  Files        1941     1941              
  Lines       75287    75287              
  Branches     8177     8177              
==========================================
+ Hits        51332    51361      +29     
+ Misses      21860    21825      -35     
- Partials     2095     2101       +6     

Flag	Coverage Δ
hive	53.17% <ø> (ø)
javascript	54.57% <ø> (+0.03%)	⬆️
mysql	78.90% <ø> (?)
postgres	78.97% <ø> (ø)
presto	53.09% <ø> (ø)
python	82.75% <ø> (+0.04%)	⬆️
sqlite	77.50% <ø> (ø)
unit	52.98% <ø> (ø)

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

see 7 files with indirect coverage changes

📣 We’re building smart automated test selection to slash your CI/CD build times. Learn more