Support for networks with disabled port security

[hellt]

I have a network with the disabled port security. On such a network one can not (and doesn't want) to apply any security groups.

When I manually create the instance on a network like this I remove the default security group for instance to spawn.

With machine controller spec like this it seems it still tries to apply the default security group because nova can't create the instance with an error that port-security should be enabled when adding security groups:

      cloudProviderSpec:
        image: "nesc-baseimages-debian-11-latest"
        flavor: ea.008-0024
        network: k8s-net-20e4f34
        subnet: k8s-subnet-b4aa25e
        securityGroups: []

[kubermatic-bot]

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[kubermatic-bot]

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