chore: Add simple complex type microbenchmark

[andygrove]

Which issue does this PR close?

Part of #1043

Rationale for this change

We need to start running benchmarks for complex type support.

What changes are included in this PR?

OpenJDK 64-Bit Server VM 11.0.26+4-post-Ubuntu-1ubuntu122.04 on Linux 6.8.0-52-generic
AMD Ryzen 9 7950X3D 16-Core Processor
CometComplexTypeBenchmark:                          Best Time(ms)   Avg Time(ms)   Stdev(ms)    Rate(M/s)   Per Row(ns)   Relative
----------------------------------------------------------------------------------------------------------------------------------
ComplexTypeBenchmark - Spark                                   20             22           2          0.0     1951297.0       1.0X
ComplexTypeBenchmark - Comet native_comet                      20             23           2          0.0     2000735.9       1.0X
ComplexTypeBenchmark - Comet native_datafusion                 19             22           3          0.0     1904497.2       1.0X
ComplexTypeBenchmark - Comet native_iceberg_compat             17             20           2          0.0     1743933.5       1.1X

How are these changes tested?

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 33.33333% with 2 lines in your changes missing coverage. Please review.

Project coverage is 39.34%. Comparing base (f09f8af) to head (b076a0c).
Report is 43 commits behind head on main.

Files with missing lines	Patch %	Lines
.../scala/org/apache/comet/serde/QueryPlanSerde.scala	0.00%	2 Missing ⚠️

Additional details and impacted files

@@              Coverage Diff              @@
##               main    #1433       +/-   ##
=============================================
- Coverage     56.12%   39.34%   -16.79%     
- Complexity      976     2087     +1111     
=============================================
  Files           119      265      +146     
  Lines         11743    61172    +49429     
  Branches       2251    12982    +10731     
=============================================
+ Hits           6591    24066    +17475     
- Misses         4012    32589    +28577     
- Partials       1140     4517     +3377     

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