chore: add annotations to sql_parse.py

[betodealmeida]

SUMMARY

Adding to sql_parse.py:

from __future__ import annotations

It will help review the next PR for #26786.

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

All modified and coverable lines are covered by tests ✅

Project coverage is 69.69%. Comparing base (2fdf6d7) to head (e8bec0a).
Report is 1421 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #27520      +/-   ##
==========================================
+ Coverage   67.39%   69.69%   +2.30%     
==========================================
  Files        1909     1909              
  Lines       74736    74740       +4     
  Branches     8326     8326              
==========================================
+ Hits        50368    52093    +1725     
+ Misses      22318    20597    -1721     
  Partials     2050     2050              

Flag	Coverage Δ
mysql	78.00% <86.66%> (-0.01%)	⬇️
postgres	78.14% <86.66%> (-0.01%)	⬇️
presto	53.69% <80.00%> (?)
python	83.06% <100.00%> (+4.77%)	⬆️
sqlite	77.57% <86.66%> (-0.01%)	⬇️
unit	56.68% <100.00%> (?)

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[betodealmeida]

I'm also working on fixing that Hive test, in a separate PR.