feat: Add Redshift as a shallow query engine

[ferenc-csaky]

Adds Redshift query dialect support. This builds on top of the SparkSQL changes, and for starters it uses Calcite's RedshiftSqlDialect as is.

[codecov]

Codecov Report

❌ Patch coverage is 23.52941% with 13 lines in your changes missing coverage. Please review.
✅ Project coverage is 18.28%. Comparing base (bf799f9) to head (034d81d).
⚠️ Report is 1 commits behind head on main.
✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
...qrl/engine/database/relational/RedshiftEngine.java	0.00%	6 Missing ⚠️
.../database/relational/RedshiftStatementFactory.java	0.00%	4 Missing ⚠️
...ine/database/relational/RedshiftEngineFactory.java	0.00%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff            @@
##               main    #2242   +/-   ##
=========================================
  Coverage     18.28%   18.28%           
- Complexity     1139     1140    +1     
=========================================
  Files           619      623    +4     
  Lines         17904    17920   +16     
  Branches       2177     2177           
=========================================
+ Hits           3274     3277    +3     
- Misses        14307    14320   +13     
  Partials        323      323           

☔ View full report in Codecov by Harness.
📢 Have feedback on the report? Share it here.