[ENH] V1 → V2 API Migration - setups

[EmanAbdelhaleem]

Depends on #1576
Related to #1575

Details
This PR implements Setups resource, and refactor its existing functions

[codecov-commenter]

Codecov Report

❌ Patch coverage is 73.18841% with 74 lines in your changes missing coverage. Please review.
✅ Project coverage is 53.67%. Comparing base (645ef01) to head (846026a).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
openml/_api/resources/tasks.py	21.27%	37 Missing ⚠️
openml/_api/http/client.py	82.60%	12 Missing ⚠️
openml/_api/resources/setups.py	83.60%	10 Missing ⚠️
openml/_api/runtime/fallback.py	0.00%	6 Missing ⚠️
openml/_api/runtime/core.py	82.14%	5 Missing ⚠️
openml/_api/resources/datasets.py	77.77%	2 Missing ⚠️
openml/_api/__init__.py	75.00%	1 Missing ⚠️
openml/_api/config.py	96.87%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1619      +/-   ##
==========================================
+ Coverage   52.78%   53.67%   +0.89%     
==========================================
  Files          36       47      +11     
  Lines        4331     4568     +237     
==========================================
+ Hits         2286     2452     +166     
- Misses       2045     2116      +71     

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