Add ClusterAPI v1.1 support

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User Story

As a user, I would like to take advantage of v1.1 Cluster API benefits for extended support and new features (TODO: add a better set of reasons).

Detailed Description

• Update the provider to adapt to and adopt all changes described here https://cluster-api.sigs.k8s.io/developer/providers/v1.0-to-v1.1.html

/kind feature

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Added this for tracking/search purposes. We have this in #307 / v0.5

See https://github.com/kubernetes-sigs/cluster-api-provider-packet/blob/main/README.md#ugrading-from-v03x-to-v11x