fix: Improper CNS log

[jpayne3506]

Reason for Change:

Fixes typo from old PR #1773

Issue Fixed:

Requirements:

• uses conventional commit messages
• includes documentation
• adds unit tests
• relevant PR labels added

Notes:

[Copilot]

Pull Request Overview

This PR fixes a typo in a log message where the function name was incorrectly referenced in the log statement. The log message was showing "[AssignDesiredIPConfigs]" when it should show "[AssignAvailableIPConfigs]" to match the actual function name.

• Corrects the function name reference in a log message from AssignDesiredIPConfigs to AssignAvailableIPConfigs

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