Added Gradient Boosting Classifier (#10944)

* Added Gradient Boosting Classifier

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Update gradient_boosting_classifier.py

* Update gradient_boosting_classifier.py

* Update gradient_boosting_classifier.py

* Update gradient_boosting_classifier.py

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

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