(fix): Change make generate to not delete vendor files (#2320)

Author: camilamacedo86

Makefile

@@ -174,7 +174,7 @@ manifests: update-crds $(MANIFESTS) $(HELM) #EXHELP Generate OLMv1 manifests
 
 .PHONY: generate
 generate: $(CONTROLLER_GEN) #EXHELP Generate code containing DeepCopy, DeepCopyInto, and DeepCopyObject method implementations.
-	@find api cmd hack internal -name "zz_generated.deepcopy.go" -delete # Need to delete the files for them to be generated properly
+	@find api cmd hack internal -name "zz_generated.deepcopy.go" -not -path "*/vendor/*" -delete # Need to delete the files for them to be generated properly
 	$(CONTROLLER_GEN) --load-build-tags=$(GO_BUILD_TAGS) object:headerFile="hack/boilerplate.go.txt" paths="./..."
 
 .PHONY: verify