Backport of reconcile consul-k8s with changes made in Consul into release/1.4.x

[hc-github-team-consul-core]

Backport

This PR is auto-generated from #3543 to be assessed for backporting due to the inclusion of the label backport/1.4.x.

The below text is copied from the body of the original PR.

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Changes proposed in this PR

Reconcile changes in Consul with Consul-k8s

• Changed the multicluster group to from v2beta1 -> v2 Change the multicluster group to v2 consul#20430
• PeerName field was removed from pbresource.Tenancy Remove V2 PeerName field from pbresource.Tenancy consul#19865

How I've tested this PR

Linter, unit and integration tests must pass

How I expect reviewers to test this PR

Checklist

• Tests added
• CHANGELOG entry added

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Overview of commits

• a91465d

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[nathancoleman]

Canceling since the multicluster package version was only shifted v2beta1 → v2 in 1.19, not in 1.18