Operator broken due to the removal of failoverServerGroup in 7.6.0

{"level":"info","ts":"2024-01-18T09:51:23Z","logger":"cluster","msg":"Reconciliation failed","cluster":"test-cng4k/test-couchbase-sh7ml","error":"timeout: unexpected status code: request failed POST
http://test-couchbase-sh7ml-0000.test-couchbase-sh7ml.test-cng4k.svc:8091/settings/autoFailover
400 Bad Request: {\"errors\":{\"failoverServerGroup\":\"Unsupported key\"}}","stack":"github.com/couchbase/couchbase-operator/pkg/util/couchbaseutil.Client.doRequest\n\tgithub.com/couchbase/couchbase-operator/pkg/util/couchbaseutil/core.go:212\ngithub.com/couchbase/couchbase-operator/pkg/util/couchbaseutil.(*Client).Post\n\tgithub.com/couchbase/couchbase-operator/pkg/util/couchbaseutil/core.go:274\ngithub.com/couchbase/couchbase-operator/pkg/util/couchbaseutil.(*Request).On.func1\n\tgithub.com/couchbase/couchbase-operator/pkg/util/couchbaseutil/api.go:222\ngithub.com/couchbase/couchbase-operator/pkg/util/couchbaseutil.(*Request).On.func2.1\n\tgithub.com/couchbase/couchbase-operator/pkg/util/couchbaseutil/api.go:240\ngithub.com/couchbase/couchbase-operator/pkg/util/retryutil.Retry\n\tgithub.com/couchbase/couchbase-operator/pkg/util/retryutil/retryutil.go:14\ngithub.com/couchbase/couchbase-operator/pkg/util/retryutil.RetryFor\n\tgithub.com/couchbase/couchbase-operator/pkg/util/retryutil/retryutil.go:30\ngithub.com/couchbase/couchbase-operator/pkg/util/couchbaseutil.(*Request).On.func2\n\tgithub.com/couchbase/couchbase-operator/pkg/util/couchbaseutil/api.go:243\ngithub.com/couchbase/couchbase-operator/pkg/util/couchbaseutil.(*Request).On\n\tgithub.com/couchbase/couchbase-operator/pkg/util/couchbaseutil/api.go:249\ngithub.com/couchbase/couchbase-operator/pkg/cluster.(*Cluster).initInitialMember\n\tgithub.com/couchbase/couchbase-operator/pkg/cluster/member.go:493\ngithub.com/couchbase/couchbase-operator/pkg/cluster.(*Cluster).configureInitialMember\n\tgithub.com/couchbase/couchbase-operator/pkg/cluster/member.go:406\ngithub.com/couchbase/couchbase-operator/pkg/cluster.(*Cluster).create\n\tgithub.com/couchbase/couchbase-operator/pkg/cluster/cluster.go:335\ngithub.com/couchbase/couchbase-operator/pkg/cluster.(*Cluster).reconcile\n\tgithub.com/couchbase/couchbase-operator/pkg/cluster/reconcile.go:152\ngithub.com/couchbase/couchbase-operator/pkg/cluster.(*Cluster).runReconcile\n\tgithub.com/couchbase/couchbase-operator/pkg/cluster/cluster.go:492\ngithub.com/couchbase/couchbase-operator/pkg/cluster.(*Cluster).Update\n\tgithub.com/couchbase/couchbase-operator/pkg/cluster/cluster.go:535\ngithub.com/couchbase/couchbase-operator/pkg/controller.(*CouchbaseClusterReconciler).Reconcile\n\tgithub.com/couchbase/couchbase-operator/pkg/controller/controller.go:90\nsigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).Reconcile\n\tsigs.k8s.io/controller-runtime@v0.16.3/pkg/internal/controller/controller.go:119\nsigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).reconcileHandler\n\tsigs.k8s.io/controller-runtime@v0.16.3/pkg/internal/controller/controller.go:316\nsigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).processNextWorkItem\n\tsigs.k8s.io/controller-runtime@v0.16.3/pkg/internal/controller/controller.go:266\nsigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).Start.func2.2\n\tsigs.k8s.io/controller-runtime@v0.16.3/pkg/internal/controller/controller.go