upgrade logicalcluster to fix missing WithCluster

[robinbobbitt]

Currently, without this fix:

% make docker-build docker-push IMG=xxx
/Users/rbobbitt/work/projects/controller-runtime-example/bin/controller-gen object:headerFile="hack/boilerplate.go.txt" paths="./..."
go fmt ./...
go vet ./...
# github.com/kcp-dev/controller-runtime-example/controllers
controllers/configmap_controller.go:56:23: undefined: logicalcluster.WithCluster
controllers/widget_controller.go:59:23: undefined: logicalcluster.WithCluster
# github.com/kcp-dev/controller-runtime-example/controllers
vet: controllers/configmap_controller.go:56:23: WithCluster not declared by package logicalcluster
make: *** [vet] Error 2

Signed-off-by: Robin Y Bobbitt [email protected]