[Ayushagrawal-cse]

Reference Issues/PRs

Fixes #3911

What does this implement/fix? Explain your changes.

• Removed the redundant _fit method from GreedyGaussianSegmenter in aeon/segmentation/_ggs.py.
• BaseSegmenter already defaults to fit_is_empty=True, and intermediate states are automatically reset at the start of find_change_points, making _fit dead code.
• Added a unit test in aeon/segmentation/tests/test_ggs.py to verify that _fit is not implemented, fit_is_empty evaluates to True, and calling .fit() works without error.
• Added myself to .all-contributorsrc.

Does your contribution introduce a new dependency? If yes, which one?

No.

Any other comments?

None.

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