Use generics for functions used in controller-runtime's builders

[chrischdi]

/kind cleanup /help

Describe the solution you'd like [A clear and concise description of what you want to happen.]

When using the builder from cotnroller runtime (Setup functions for AddToManager) we should migrate to use generics.

Anything else you would like to add: [Miscellaneous information that will assist in solving the issue.]

Follow-up from https://github.com/kubernetes-sigs/cluster-api-provider-vsphere/pull/3146#discussion_r1713598349

Environment:

• Cluster-api-provider-vsphere version:
• Kubernetes version: (use kubectl version):
• OS (e.g. from /etc/os-release):

[k8s-ci-robot]

@chrischdi: This request has been marked as needing help from a contributor.

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In response to [this](https://github.com/kubernetes-sigs/cluster-api-provider-vsphere/issues/3150): >/kind cleanup >/help > >**Describe the solution you'd like** >[A clear and concise description of what you want to happen.] > >When using the builder from cotnroller runtime (Setup functions for `AddToManager`) we should migrate to use generics. > >**Anything else you would like to add:** >[Miscellaneous information that will assist in solving the issue.] > > >Follow-up from >https://github.com/kubernetes-sigs/cluster-api-provider-vsphere/pull/3146#discussion_r1713598349 > >**Environment:** > >- Cluster-api-provider-vsphere version: >- Kubernetes version: (use `kubectl version`): >- OS (e.g. from `/etc/os-release`): Instructions for interacting with me using PR comments are available [here](https://git.k8s.io/community/contributors/guide/pull-requests.md). If you have questions or suggestions related to my behavior, please file an issue against the [kubernetes-sigs/prow](https://github.com/kubernetes-sigs/prow/issues/new?title=Prow%20issue:) repository.

[sbueringer]

Note: It's enough to do this only in cases where we are actually using the types (vs. just using client.Object).

One example would be: https://github.com/kubernetes-sigs/cluster-api-provider-vsphere/blob/204790fdf003ddd714537f3e7a47b82c4335c083/controllers/vmware/vspherecluster_reconciler.go#L338 Here we are actually using VSphereMachine, there are also cases where we just use client.Object, in these cases there would be no benefit to moving to generics