Add probe yamls for Livermore probes

[khl02007]

Add yaml files for Livermore probes that were missing

[Copilot]

Pull Request Overview

This PR adds three missing YAML configuration files for Livermore probe metadata, specifically providing electrode layout specifications for different 128-channel polyimide probes with varying contact sizes and spacing.

• Adds metadata files for three probe variants: 4mm (15um/26um), 6mm (20um/40um), and 8mm (15um/26um) spacing configurations
• All probes share a common 4-shank, 128-electrode layout with different dimensional parameters
• Provides complete electrode positioning data for each shank with relative x, y, z coordinates

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

File	Description
128c-4s8mm6cm-15um-26um-sl.yml	Adds probe metadata for 8mm variant with 15um contact size and 26um spacing
128c-4s6mm6cm-20um-40um-sl.yml	Adds probe metadata for 6mm variant with 20um contact size and 40um spacing
128c-4s4mm6cm-15um-26um-sl.yml	Adds probe metadata for 4mm variant with 15um contact size and 26um spacing

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[edeno]

Thanks for doing this. Can you fix the test?

[khl02007]

@edeno uh what is this test and how do i fix it?

[edeno]

FAILED src/trodes_to_nwb/tests/test_convert.py::test_get_included_device_metadata_paths - AssertionError: assert 19 == 16

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 89.53%. Comparing base (9541a17) to head (1365d8f).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
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  Coverage   89.53%   89.53%           
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  Files          13       13           
  Lines        1711     1711           
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  Hits         1532     1532           
  Misses        179      179           

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