feat(azure): Fix imds-based ssh_pwauth

[KsenijaS]

Proposed Commit Message

feat(azure): Fix imds-based ssh_pwauth

To enable/disable password authentication is only possible in the OVF code path.
If OVF is unavailable, we fall back to IMDS and we want to have the same logic.

Additional Context

Test Steps

Merge type

• Squash merge using "Proposed Commit Message"
• Rebase and merge unique commits. Requires commit messages per-commit each referencing the pull request number (#<PR_NUM>)