parquet (feature): Encode complex objects as JSON columns

[xerial]

Previously ParquetWriter used MessagePack for embedding complex object data into a column. For compatibility with the Parquet ecosystem (e.g., DuckDB), using JSON is better.

[codecov]

Codecov Report

Attention: 3 lines in your changes are missing coverage. Please review.

Comparison is base (1ee3560) 82.55% compared to head (46f75cd) 82.57%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3343      +/-   ##
==========================================
+ Coverage   82.55%   82.57%   +0.01%     
==========================================
  Files         355      355              
  Lines       14855    14881      +26     
  Branches     2434     2462      +28     
==========================================
+ Hits        12264    12288      +24     
- Misses       2591     2593       +2     

Files	Coverage Δ
...a/wvlet/airframe/parquet/ParquetRecordReader.scala	94.82% <100.00%> (+0.82%)	⬆️
...ala/wvlet/airframe/parquet/ParquetWriteCodec.scala	91.89% <100.00%> (+0.98%)	⬆️
...n/scala/wvlet/airframe/parquet/ParquetSchema.scala	91.07% <90.90%> (-0.42%)	⬇️
.../main/scala/wvlet/airframe/msgpack/spi/Value.scala	82.31% <81.81%> (-0.09%)	⬇️

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