ospf: T6089: fix invalid "ospf passive-interface default"

[c-po]

Change Summary

The option "passive-interface default" was set even if it was not present in the previous version we are migrating from. Fix migration script to handle this with a conditional path.

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):

Related Task(s)

• https://vyos.dev/T6089

Related PR(s)

Component(s) name

Proposed changes

Conditional code path for default with a new config test added to check the migrator

Checklist:

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

[c-po]

@Mergifyio backport sagitta

[mergify]

backport sagitta

✅ Backports have been created

• #3251 ospf: T6089: fix invalid "ospf passive-interface default" (backport #3249) has been created for branch sagitta