[CHAT] Make ChatGPT model ID configurable

[bowenliang123]

Why are the changes needed?

• Make ChatGPT model ID configurable

How was this patch tested?

• Add some test cases that check the changes thoroughly including negative and positive cases if possible

• Add screenshots for manual tests if appropriate

• Run test locally before make a pull request

[bowenliang123]

According to OpenAI's API reference(https://platform.openai.com/docs/api-reference/completions/create), many detailed settings of chat completion request, other than model id, like max_tokens, topP, can be configured.
Do you guys think we should expose them one by one in separate config in Kyuubi , or just expose a config in JSON style, that consumes dynamic settings for ChatGPT? @pan3793 @cxzl25

[pan3793]

I would suggest just exposing the most frequently usage small set of the whole parameters.

[pan3793]

Please add this PR into the Umbrella task list

[bowenliang123]

I would suggest just exposing the most frequently usage small set of the whole parameters.

Agree. And let's expose parameters on specific purpose.

[bowenliang123]

Please add this PR into the Umbrella task list

Added. Thx for reminder.

[codecov-commenter]

Codecov Report

Merging #4558 (3012cca) into master (24e87ef) will decrease coverage by 0.02%.
The diff coverage is 100.00%.

❗ Current head 3012cca differs from pull request most recent head 63f8ee3. Consider uploading reports for the commit 63f8ee3 to get more accurate results

@@             Coverage Diff              @@
##             master    #4558      +/-   ##
============================================
- Coverage     53.27%   53.25%   -0.02%     
  Complexity       13       13              
============================================
  Files           573      573              
  Lines         31493    31498       +5     
  Branches       4237     4237              
============================================
- Hits          16777    16775       -2     
- Misses        13135    13140       +5     
- Partials       1581     1583       +2     

Impacted Files	Coverage Δ
...in/scala/org/apache/kyuubi/config/KyuubiConf.scala	97.18% <100.00%> (+<0.01%)	⬆️

... and 10 files with indirect coverage changes

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[bowenliang123]

Thanks, merged to master.