internal/plugins: Add kustomize as a prerequisite of Makefile's bundle target

`bundle` target in the autogenerated Makefile for new golang based operator projects generated by the operator-sdk make use of the `kustomize` CLI tool. This commit adds the `kustomize` Makefile target as a prerequisite of the `bundle` target.

Author: miguelsorianod

internal/plugins/manifests/init.go

@@ -88,7 +88,7 @@ BUNDLE_METADATA_OPTS ?= $(BUNDLE_CHANNELS) $(BUNDLE_DEFAULT_CHANNEL)
 makefileBundleFragmentGo = `
 # Generate bundle manifests and metadata, then validate generated files.
 .PHONY: bundle
-bundle: manifests
+bundle: manifests kustomize
 operator-sdk generate kustomize manifests -q
 cd config/manager && $(KUSTOMIZE) edit set image controller=$(IMG)
 $(KUSTOMIZE) build config/manifests | operator-sdk generate bundle -q --overwrite --version $(VERSION) $(BUNDLE_METADATA_OPTS)

testdata/go/memcached-operator/Makefile

@@ -111,7 +111,7 @@ endif
 
 # Generate bundle manifests and metadata, then validate generated files.
 .PHONY: bundle
-bundle: manifests
+bundle: manifests kustomize
 operator-sdk generate kustomize manifests --interactive=false -q
 cd config/manager && $(KUSTOMIZE) edit set image controller=$(IMG)
 $(KUSTOMIZE) build config/manifests | operator-sdk generate bundle -q --overwrite --version $(VERSION) $(BUNDLE_METADATA_OPTS)