[BUG] fix: add missing max_len to GreedyEncoder.get_test_params param0 (closes #376)

[Blackphoenix-15]

Reference Issues/PRs

Fixes #376

What does this implement/fix? Explain your changes.

Added missing max_len argument to param0 in GreedyEncoder.get_test_params().
The init requires max_len but param0 was not providing it, causing a
TypeError when instantiating GreedyEncoder with param0.

What should a reviewer concentrate their feedback on?

The single line addition of "max_len": 10 to param0 in get_test_params() in _greedy.py

Did you add any tests for the change?

No new tests added. The fix directly resolves the TypeError shown in the issue.

Any other comments?

PR checklist

• The PR title starts with either [ENH], [MNT], [DOC], or [BUG]. [BUG] - bugfix, [MNT] - CI, test framework, [ENH] - adding or improving code, [DOC] - writing or improving documentation or docstrings.
• Added/modified tests
• Used pre-commit hooks when committing to ensure that code is compliant with hooks. Install hooks with pre-commit install.
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