feat(cubesql): Support round() function with two parameters

[mcheshkov]

Check List

• Tests have been run in packages where changes made if available
• Linter has been run for changed code
• Tests for the changes have been added if not covered yet
• Docs have been added / updated if required

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 84.12%. Comparing base (dd53c38) to head (0c3c408).
Report is 23 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #9594      +/-   ##
==========================================
+ Coverage   84.10%   84.12%   +0.02%     
==========================================
  Files         230      230              
  Lines       84440    84547     +107     
==========================================
+ Hits        71015    71122     +107     
  Misses      13425    13425              

Flag	Coverage Δ
cubesql	84.12% <100.00%> (+0.02%)	⬆️

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