deprecation for filters.eccentricity

[joshqsumner]

Describe your changes
Adding a deprecation warning to pcv.filters.eccentricity

Type of update
This is a minor update looking towards v5

Associated issues
None

Additional context
Planning to just use the pcv.filters.obj_props function going forward although we could have wrappers.

For the reviewer
See this page for instructions on how to review the pull request.

• PR functionality reviewed in a Jupyter Notebook
• All tests pass
• Test coverage remains 100%
• Documentation tested
• New documentation pages added to plantcv/mkdocs.yml
• Changes to function input/output signatures added to updating.md
• Code reviewed
• PR approved

[deepsource-io]

DeepSource Code Review

We reviewed changes in 3ffe3d8...f2fe2df on this pull request. Below is the summary for the review, and you can see the individual issues we found as inline review comments.

See full review on DeepSource ↗

PR Report Card

Overall Grade

Security   Reliability   Complexity   Hygiene   Coverage

Code Review Summary

Analyzer	Status	Updated (UTC)	Details
Python		Jun 29, 2026 4:38p.m.	Review ↗
Code coverage		Jun 29, 2026 4:38p.m.	Review ↗

Code Coverage Summary

Language	Line Coverage (New Code)	Line Coverage (Overall)
Aggregate	100% [✓ above threshold]	100%
Python	100% [✓ above threshold]	100%

➟ Additional coverage metrics may have been reported. See full coverage report ↗

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