ethtool: T6729: upgrade to 6.10 to make use of more --json options

[c-po]

Change Summary

Same as T6078 but we now wan't to make use of ethtool --json eth0 to drop out own text based parsing of ethtool options in [1]. This is the base for moving to a better, machine readable interface

1: https://github.com/vyos/vyos-1x/blob/e47d4fd385631236da68/python/vyos/ethtool.py#L77-L105

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Code style update (formatting, renaming)
• Refactoring (no functional changes)
• Migration from an old Vyatta component to vyos-1x, please link to related PR inside obsoleted component
• Other (please describe): Package upgrade

Related Task(s)

• https://vyos.dev/T6729

Component(s) name

ethtool

Proposed changes

How to test

Checklist:

• I have read the CONTRIBUTING document
• I have linked this PR to one or more Phabricator Task(s)
• My commit headlines contain a valid Task id
• My change requires a change to the documentation
• I have updated the documentation accordingly

[github-actions]

👍
No issues in PR Title / Commit Title

[c-po]

@Mergifyio backport circinus

[mergify]

backport circinus

✅ Backports have been created

• #771 ethtool: T6729: upgrade to 6.10 to make use of more --json options (backport #769) has been created for branch circinus