[FOLLOWUP] Query max instructions length in getJsonObject from JNI

[thirtiseven]

          Nit: The max length value should be queried from JNI so we always have such value sync. This can be addressed in the follow up work (which requires JNI to expose such value).

Originally posted by @ttnghia in #10581 (comment)

Also some test cases need to clean up, see #10581 's comments.

[thirtiseven]

Another follow-up: get_json_object compatibility doc is outdated.

https://github.com/NVIDIA/spark-rapids/blob/branch-24.04/docs/compatibility.md#get_json_object

[thirtiseven]

float normalization will have some compatibility issue, as the same as float to string. We should add another test to verify it.

[sameerz]

Another follow-up: get_json_object compatibility doc is outdated.

https://github.com/NVIDIA/spark-rapids/blob/branch-24.04/docs/compatibility.md#get_json_object

@thirtiseven I noticed the PR that closed this issue did not update the documentation. Are the docs still accurate?

[thirtiseven]

Another follow-up: get_json_object compatibility doc is outdated.
https://github.com/NVIDIA/spark-rapids/blob/branch-24.04/docs/compatibility.md#get_json_object

@thirtiseven I noticed the PR that closed this issue did not update the documentation. Are the docs still accurate?

Yes, it has been updated in f6054fa