Updates details.family check for Node v18

[dmalan]

Relevant issues

Fixes #815.

Whereas os.networkinterfaces used to return a String value for family like 'IPv4' in Node v17 and prior, per https://nodejs.org/docs/latest-v17.x/api/os.html#osnetworkinterfaces, it seems to have changed to a Number like 4 in Node v18, per https://nodejs.org/docs/latest-v18.x/api/os.html#osnetworkinterfaces.

Contributor checklist

• The pull request is being made against the master branch

(No existing tests to update.)

Maintainer checklist

• Assign a version triage tag
• Approve tests if applicable

[zbynek]

The issue is duplicate of #810 and there is another proposed fix already in #811

[thornjad]

Correct, duplicate of #811, and I very marginally like #811's implementation better