refactor: sync repo file structure changes

[evansims]

Description

This is a follow up PR that makes minor changes to the repository file structure to better organize unit tests, and more clearly identify what they are testing.

This also applies minor updates to the Telemetry changes in v0.6.0 as a result of backporting changes to the Generator. This represents a fresh regeneration of the SDK from the Generator's new Python client templates.

References

Review Checklist

• [x] I have clicked on "allow edits by maintainers".
• [ ] I have added documentation for new/changed functionality in this PR or in a PR to openfga.dev [Provide a link to any relevant PRs in the references section above]
• [x] The correct base branch is being used, if not main
• [ ] I have added tests to validate that the change in functionality is working as expected

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 68.51852% with 170 lines in your changes missing coverage. Please review.

Project coverage is 68.72%. Comparing base (9065ff1) to head (8b3f02e).

Files	Patch %	Lines
openfga_sdk/api/open_fga_api.py	68.51%	85 Missing :warning:
openfga_sdk/sync/open_fga_api.py	68.51%	85 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #110 +/- ## ========================================== - Coverage 68.74% 68.72% -0.03% ========================================== Files 119 119 Lines 9129 9665 +536 ========================================== + Hits 6276 6642 +366 - Misses 2853 3023 +170 ```

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