SNOW-1344848: Suppress dynamic pivot warnings

[sfc-gh-mvashishtha]

Please answer these questions before submitting your pull requests. Thanks!

1. What GitHub issue is this PR addressing? Make sure that there is an accompanying issue to your PR.

   Fixes SNOW-1344848

2. Fill out the following pre-review checklist:

   • I am adding a new automated test(s) to verify correctness of my new code
   • I am adding new logging messages
   • I am adding a new telemetry message
   • I am adding new credentials
   • I am adding a new dependency

3. Please describe how your code solves the related issue.

   Stop warning the user about our internal usage of private preview
   dynamic pivot features. The user should have already been warned that
   Snowpark pandas is in public or private preview. They very likely don't
   know or care that we are using Snowpark DataFrame pivot() internally,
   let alone that we are using private preview features of Snowpark
   Python.

   I'm not adding a changelog note because we haven't released a version of
   Snowpark Python with this bug yet.

[sfc-gh-mvashishtha]

I removed @sfc-gh-lmukhopadhyay because she's OOO

[sfc-gh-yuwang]

LGTM, but I want to wait for pandas team reviewing this since we don't have tons of knowledge of it.

[sfc-gh-jkew]

Too complicated of a solution for a minor problem.

[sfc-gh-rdurrani]

LGTM, but I agree with @sfc-gh-jkew's comment - think there may be an easier solution here.

[sfc-gh-stan]

This seems to also surpress the warning when the user (1) imports Snowpark pandas but doesn't do anything and (2)uses dynamic pivot directly from Snowpark Python API. But I understand the code will be much more complicated to address this specific case, in the future we should work out a way to generalize this solution for if Snowpark Pandas uses an experimental/pre-GA public API from Snowpark Python, the warning should be surpressed.

[sfc-gh-mvashishtha]

in the future we should work out a way to generalize this solution for if Snowpark Pandas uses an experimental/pre-GA public API from Snowpark Python, the warning should be surpressed

Sure, if this comes up at least twice again, we might want to add something like the log filter I added earlier to generalize the warning suppression here.

[sfc-gh-evandenberg]

LGTM