fix: Fallback to Spark for unsupported input besides ordering

[viirya]

Which issue does this PR close?

Closes #769.

Rationale for this change

What changes are included in this PR?

How are these changes tested?

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 33.33333% with 4 lines in your changes missing coverage. Please review.

Project coverage is 33.66%. Comparing base (e33d560) to head (cef4884).
Report is 4 commits behind head on main.

Files	Patch %	Lines
.../scala/org/apache/comet/serde/QueryPlanSerde.scala	33.33%	0 Missing and 4 partials ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##               main     #768      +/-   ##
============================================
+ Coverage     33.63%   33.66%   +0.02%     
- Complexity      822      836      +14     
============================================
  Files           111      111              
  Lines         42650    42722      +72     
  Branches       9390     9397       +7     
============================================
+ Hits          14345    14381      +36     
- Misses        25335    25369      +34     
- Partials       2970     2972       +2     

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[huaxingao]

LGTM

[viirya]

Thank you @huaxingao

[kazuyukitanimura]

Pending CI

[viirya]

Thanks @huaxingao @kazuyukitanimura