Fix 'make (un)install' commands (#96)

The wildcard in the 'make (un)install' commands was causing an error
locally. At least on my system and shell (zsh), adding the single quotes
around the file path fixes it.

Related to https://linear.app/prefect/issue/PLA-289/cycle-2-catch-all

Makefile

@@ -163,11 +163,11 @@ endif
 
 .PHONY: install
 install: manifests tools ## Install CRDs into the K8s cluster specified in ~/.kube/config.
-	$(KUBECTL) apply -f deploy/charts/prefect-operator/crds/*.yaml
+	$(KUBECTL) apply -f 'deploy/charts/prefect-operator/crds/*.yaml'
 
 .PHONY: uninstall
 uninstall: manifests tools ## Uninstall CRDs from the K8s cluster specified in ~/.kube/config. Call with ignore-not-found=true to ignore resource not found errors during deletion.
-	$(KUBECTL) delete --ignore-not-found=$(ignore-not-found) -f deploy/charts/prefect-operator/crds/*.yaml
+	$(KUBECTL) delete --ignore-not-found=$(ignore-not-found) -f 'deploy/charts/prefect-operator/crds/*.yaml'
 
 .PHONY: deploy
 deploy: helmbuild ## Install CRDs & the Helm Chart to the K8s cluster specified in ~/.kube/config.