[outscale] ssh keypair not working since fix of #1408

[DvdChe]

Environment

• Make target: make osc-ubuntu-2204
• Run using container image? (Y/N): N

What steps did you take and what happened?

image creation is ok but when we boot-up from new image, VM won't apply ssh keypair configured within outscale API

What did you expect to happen?

VM should be up and running with right ssh keypair and accept authentication

This problem is related to the issue #1408.

/kind bug