Upgrade the internal PostgreSQL to 14 in 2.9.0

[YangJiao0817]

Fix #18338

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Comprehensive Summary of your change

Issue being fixed

Fixes #(issue)

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[codecov]

Codecov Report

Merging #18612 (e102623) into main (0a3509f) will decrease coverage by 22.73%.
The diff coverage is n/a.

@@             Coverage Diff             @@
##             main   #18612       +/-   ##
===========================================
- Coverage   67.38%   44.66%   -22.73%     
===========================================
  Files         984      235      -749     
  Lines      107029    13089    -93940     
  Branches     2670     2670               
===========================================
- Hits        72123     5846    -66277     
+ Misses      31023     6948    -24075     
+ Partials     3883      295     -3588     

Flag	Coverage Δ
unittests	44.66% <ø> (-22.73%)	⬇️

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see 751 files with indirect coverage changes

[wy65701436]

lgtm