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[docs] [ci] skip scikit-learn 1.7.1 in docs build, make tests compatible with pandas 3.0, use new Azure DevOps pool (#6979)

* Add "PT" ruff code to pyproject.toml plus some exceptions

* Extend PT011 for Exception, IndexError, TypeError

* Fix PT001: Use `@pytest.fixture` over `@pytest.fixture()`

* Fix PT011: pytest.raises({exception}) is too broad, set the match parameter or use a more specific exception

* Fix PT012: `pytest.raises()` block should contain a single simple statement

* Fix PT017: Found assertion on exception {name} in except block, use pytest.raises() instead

* Fix PT018: Assertion should be broken down into multiple parts

* Remove PT006 and PT007 from ignore list and fixup

* Use *Exception and *Error glob to apply PT011 and ignore AssertionErrors

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Co-authored-by: Nikita Titov <nekit94-08@mail.ru>

add error messages to test_sklearn.py

add error messages to test_plotting.py

add error messages to test_get_split_value_histogram

* add error messages to test_list_to_1d_numpy

* add error messages to test_training_works_if_client_not_provided_or_set_after_construction

* ensure name value is captured in error message, update name for all _list_to_1d_numpy calls

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Co-authored-by: Nikita Titov <nekit94-08@mail.ru>

Co-authored-by: Nikita Titov <nekit94-08@mail.ru>

* [python-package] Test serialization and deserialization from in-memory string

Test case for #6851

* [python-package] Fill in `params` when loading from in-memory string

This fixes #6851 by using the same workaround as when loading the model
from a file.

* test_basic: use rng instead of legacy numpy RandomState

* test_basic: remove debug prints leftovers
Co-authored-by: James Lamb <jaylamb20@gmail.com>

* test_basic: add boolean, array of float and array of integers to testcase
Co-authored-by: James Lamb <jaylamb20@gmail.com>

* test_basic: make a cheaper model (2 rounds with 7 leaves each)
Co-authored-by: James Lamb <jaylamb20@gmail.com>

* test_basic: bugfix typos

* python_package_test: move string load test from basic to engine

* test_engine: catch params ignored warnings

* test_engine: be explicit about parameters assertion

* test_engine: shush linter complaint

* test_basic: delete empty line
Co-authored-by: James Lamb <jaylamb20@gmail.com>

* test_engine: even cheaper model with less features
Co-authored-by: James Lamb <jaylamb20@gmail.com>

* test_engine: delete redundant assert
Co-authored-by: James Lamb <jaylamb20@gmail.com>

* test_engine: run pre-commit and take it's word for it

* test_engine: be explicit in an E712 compliant way

* test_engine.py: pass different value as argument to make sure it is ignored

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Co-authored-by: James Lamb <jaylamb20@gmail.com>
Co-authored-by: Nikita Titov <nekit94-08@mail.ru>

* [python-package] enforce keyword args in internal functions

* fix

* fixes

* empty commit

* [ci] [Dask] enable Dask tests on macOS

* fix windows condition

* fix merge conflicts

Co-authored-by: Nikita Titov <nekit94-08@mail.ru>

Co-authored-by: James Lamb <jaylamb20@gmail.com>
Co-authored-by: Nikita Titov <nekit94-08@mail.ru>

[python-package] do not copy column-major numpy arrays when creating Dataset from list of arrays (#6773)
Co-authored-by: Nikita Titov <nekit94-08@mail.ru>

Co-authored-by: James Lamb <jaylamb20@gmail.com>

Co-authored-by: Nikita Titov <nekit94-08@mail.ru>

* do not copy column-major numpy arrays when creating Dataset

* fix logic

* lint

* code review

* update test

* move dataset test to basic

* increase features

* assert single layout

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Co-authored-by: Nikita Titov <nekit94-08@mail.ru>

Co-authored-by: Nikita Titov <nekit94-08@mail.ru>

[python-package] adapt to scikit-learn 1.6 testing changes, pin more packages in R 3.6 CI jobs (#6718)

[python-package] remove support for passing 'feature_name' and 'categorical_feature' through train() and cv() (#6706)

Co-authored-by: Atanas Dimitrov <nasko119@abv.bg>
Co-authored-by: James Lamb <jaylamb20@gmail.com>

[python-package] require `scikit-learn>=0.24.2`, make scikit-learn estimators compatible with `scikit-learn>=1.6.0dev` (#6651)
Co-authored-by: James Lamb <jaylamb20@gmail.com>
Co-authored-by: Nikita Titov <nekit94-08@mail.ru>

* add bagging by query for lambdarank

* fix pre-commit

* fix bagging by query with cuda

* fix bagging by query test case

* fix bagging by query test case

* fix bagging by query test case

* add #include <vector>

* Update include/LightGBM/objective_function.h
Co-authored-by: Nikita Titov <nekit94-08@mail.ru>

* Update tests/python_package_test/test_engine.py
Co-authored-by: Nikita Titov <nekit94-08@mail.ru>

* Update tests/python_package_test/test_engine.py
Co-authored-by: Nikita Titov <nekit94-08@mail.ru>

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Co-authored-by: Nikita Titov <nekit94-08@mail.ru>

Co-authored-by: Nikita Titov <nekit94-08@mail.ru>

Co-authored-by: James Lamb <jaylamb20@gmail.com>

[ci] prevent `train.binary.bin` and `lgb_train_data.bin` files being left behind after testing (#6606)
Co-authored-by: Nikita Titov <nekit94-08@mail.ru>

[python-package] Correctly recognize LGBMClassifier(num_class=2, objective="multiclass") as multiclass classification (#6524)

[python-package] respect 'verbose' setting when using custom objective function (fixes #6014) (#6428)