[TD-32234] feat(ws): websocket stmt2 support

[qevolg]

WebSocket stmt2 support

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 97.76928% with 35 lines in your changes missing coverage. Please review.

Project coverage is 74.75%. Comparing base (532bae1) to head (2bccccd).
Report is 56 commits behind head on main.

Files with missing lines	Patch %	Lines
taos-ws/src/stmt2/mod.rs	97.75%	15 Missing ⚠️
taos-ws/src/query/infra.rs	89.79%	10 Missing ⚠️
taos-ws/src/query/asyn.rs	89.47%	8 Missing ⚠️
taos/src/stmt2.rs	99.61%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #371      +/-   ##
==========================================
+ Coverage   71.41%   74.75%   +3.34%     
==========================================
  Files          97      102       +5     
  Lines       34652    38812    +4160     
==========================================
+ Hits        24745    29012    +4267     
+ Misses       9907     9800     -107     

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