Add ClusterClaim to the ramen-dr-cluster reconciler scheme

[ShyamsundarR]

This is required as the dr-cluster DRClusterConfig reconciler manages cluster claims.

This was missed out in commit 91e5a5b

[ShyamsundarR]

Tested (in drenv) with and without this PR to reproduce errors like below (without the fix) and ensured fix works to remove the errors observed:

2024-09-25T16:32:25.312Z	ERROR	controller/controller.go:316	Reconciler error	{"controller": "drclusterconfig", "controllerGroup": "ramendr.openshift.io", "controllerKind": "DRClusterConfig", "DRClusterConfig": {"name":"dr1"}, "namespace": "", "name": "dr1", "reconcileID": "00ecd0e9-c8f6-4369-a8d6-6aba7f1028c2", "error": "failed to create or update ClusterClaim storage.class.rook-ceph-block, no kind is registered for the type v1alpha1.ClusterClaim in scheme \"pkg/runtime/scheme.go:100\""}
sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller[...]).reconcileHandler
	/go/pkg/mod/sigs.k8s.io/[email protected]/pkg/internal/controller/controller.go:316
sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller[...]).processNextWorkItem
	/go/pkg/mod/sigs.k8s.io/[email protected]/pkg/internal/controller/controller.go:263
sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller[...]).Start.func2.2
	/go/pkg/mod/sigs.k8s.io/[email protected]/pkg/internal/controller/controller.go:224

[ShyamsundarR]

Noted the following flakes from CI/e2e:

• envtest flake: VolumeReplicationGroupVolRepController restore test case for existing and bound PV/PVC PVC selection when two are deselected with volume unprotection disabled [It] updates the status #1372 (restarted envtests)
• e2e flake: TestSuites/Exhaustive/Deploy-cephfs/Subscr/Failover fails #1557