Fix make install

Running `make install` fails with error:

  The CustomResourceDefinition "openstackcontrolplanes.core.openstack.org" is invalid: metadata.annotations: Too long: must have at most 262144 bytes

This patch fixes this problem by using `kubectl replace` instead of
`kubectl apply`.

Replace was chosen over `kubectl apply --server-side` because the apply
may fail to merge with the existing CRD, whereas replace will not fail.

Makefile

@@ -188,7 +188,7 @@ endif
 
 .PHONY: install
 install: manifests kustomize ## Install CRDs into the K8s cluster specified in ~/.kube/config.
-	$(KUSTOMIZE) build config/crd | kubectl apply -f -
+	$(KUSTOMIZE) build config/crd | kubectl replace -f -
 
 .PHONY: uninstall
 uninstall: manifests kustomize ## Uninstall CRDs from the K8s cluster specified in ~/.kube/config. Call with ignore-not-found=true to ignore resource not found errors during deletion.