fix: Mark WindowsExec as incompatible [WIP]

[andygrove]

Which issue does this PR close?

Follows on from #2741

Rationale for this change

Remove temp fallback and use CometOperatorSerde framework instead

What changes are included in this PR?

• Remove temp fallback and use CometOperatorSerde framework instead
• Remove support for WindowsExec as a Comet sink because it causes panics
• Update golden files

How are these changes tested?

[andygrove]

Removing this line fixes #2737. I wish I could explain why, but I cannot.

[codecov-commenter]

Codecov Report

❌ Patch coverage is 39.39394% with 40 lines in your changes missing coverage. Please review.
✅ Project coverage is 45.89%. Comparing base (f09f8af) to head (50c5972).
⚠️ Report is 680 commits behind head on main.

Files with missing lines	Patch %	Lines
.../scala/org/apache/comet/serde/QueryPlanSerde.scala	42.85%	25 Missing and 7 partials ⚠️
...on/src/main/scala/org/apache/comet/CometConf.scala	20.00%	4 Missing ⚠️
...in/scala/org/apache/comet/serde/SupportLevel.scala	0.00%	3 Missing ⚠️
.../org/apache/comet/serde/operator/CometWindow.scala	0.00%	1 Missing ⚠️

Additional details and impacted files

@@              Coverage Diff              @@
##               main    #2748       +/-   ##
=============================================
- Coverage     56.12%   45.89%   -10.24%     
- Complexity      976     1219      +243     
=============================================
  Files           119      163       +44     
  Lines         11743    13984     +2241     
  Branches       2251     2375      +124     
=============================================
- Hits           6591     6418      -173     
- Misses         4012     6525     +2513     
+ Partials       1140     1041       -99     

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