Add 22050 Hz as flavor, deprecate 22500 Hz

[ChristianGeng]

closes #468

Summary by Sourcery

Change the supported sampling rate from 22500 Hz to 22050 Hz in the codebase and update the documentation accordingly.

Enhancements:

• Update the sampling rate from 22500 Hz to 22050 Hz across multiple files for consistency.

Documentation:

• Update documentation to reflect the change in supported sampling rates from 22500 Hz to 22050 Hz.

[sourcery-ai]

Reviewer's Guide by Sourcery

This PR corrects a sampling rate value from 22500 Hz to 22050 Hz across the codebase. The change is made consistently in function docstrings and the list of supported sampling rates.

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

File-Level Changes

Change	Details	Files
Update incorrect sampling rate value in supported sampling rates list	Change sampling rate value from 22500 Hz to 22050 Hz Update docstrings to reflect the correct sampling rate	audb/core/api.py audb/core/load.py audb/core/define.py audb/core/flavor.py audb/core/stream.py docs/load.rst

Assessment against linked issues

Issue	Objective	Addressed	Explanation
#468	Deprecate/remove 22,500 Hz sampling rate	✅
#468	Add 22,050 Hz sampling rate	✅

Possibly linked issues

• Deprecate 22,500 Hz sampling rate and add 22,050 Hz instead #468: The PR implements the issue's request to change sampling rate from 22,500 Hz to 22,050 Hz.

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[sourcery-ai]

Hey @ChristianGeng - 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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[hagenw]

All fine now.