fix(cubesql): Make cube join check stricter

[mcheshkov]

Check List

• Tests has 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

Description of Changes Made (if issue reference is not provided)

Now it should catch plans like Join(CubeScan, Projection(CubeScan))

[codecov]

Codecov Report

Attention: Patch coverage is 43.47826% with 39 lines in your changes missing coverage. Please review.

Project coverage is 83.75%. Comparing base (0e95f18) to head (205e40b).
Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
...t/cubesql/cubesql/src/compile/engine/df/wrapper.rs	0.00%	27 Missing ⚠️
...t/cubesql/cubesql/src/compile/rewrite/converter.rs	70.00%	12 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #9043      +/-   ##
==========================================
- Coverage   83.81%   83.75%   -0.07%     
==========================================
  Files         229      229              
  Lines       82658    82604      -54     
==========================================
- Hits        69283    69186      -97     
- Misses      13375    13418      +43     

Flag	Coverage Δ
cubesql	83.75% <43.47%> (-0.07%)	⬇️

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