Fix docstring in sharpen

[ternaus]

Summary by Sourcery

Documentation:

• Correct the type annotation in the docstring for the 'method' parameter in the Sharpen class.

[sourcery-ai]

Reviewer's Guide by Sourcery

This PR improves the docstring of the Sharpen class by making the method parameter type annotation more specific using a Literal type.

No diagrams generated as the changes look simple and do not need a visual representation.

File-Level Changes

Change	Details	Files
Updated type annotation for the method parameter in the Sharpen transform	Changed type hint from str to Literal['kernel', 'gaussian'] to explicitly show allowed values Maintained existing documentation of parameter options and default value	albumentations/augmentations/transforms.py

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[sourcery-ai]

Hey @ternaus - I've reviewed your changes and they look great!

Here's what I looked at during the review

• 🟢 General issues: all looks good
• 🟢 Security: all looks good
• 🟢 Testing: all looks good
• 🟢 Complexity: all looks good
• 🟢 Documentation: all looks good

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 89.77%. Comparing base (b1a79c2) to head (434fff4).
Report is 305 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##           main    #2181       +/-   ##
=========================================
+ Coverage      0   89.77%   +89.77%     
=========================================
  Files         0       47       +47     
  Lines         0     8431     +8431     
=========================================
+ Hits          0     7569     +7569     
- Misses        0      862      +862     

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