fix: add OS=windows to manifest-add args (#2194)

due to a change in buildx, we need to explicitly
pull the windows variant of the windows image that
we have previously built.

Signed-off-by: Evan Baker <rbtr@users.noreply.github.com>

Makefile

@@ -478,14 +478,14 @@ manifest-create:
 	$(CONTAINER_BUILDER) manifest create $(IMAGE_REGISTRY)/$(IMAGE):$(TAG)
 
 manifest-add:
-	$(CONTAINER_BUILDER) manifest add --os-version=$($(OS_VERSION)) $(IMAGE_REGISTRY)/$(IMAGE):$(TAG) docker://$(IMAGE_REGISTRY)/$(IMAGE):$(subst /,-,$(PLATFORM))$(if $(OS_VERSION),-$(OS_VERSION),)-$(TAG)
+	$(CONTAINER_BUILDER) manifest add --os=$(OS) --os-version=$($(OS_VERSION)) $(IMAGE_REGISTRY)/$(IMAGE):$(TAG) docker://$(IMAGE_REGISTRY)/$(IMAGE):$(subst /,-,$(PLATFORM))$(if $(OS_VERSION),-$(OS_VERSION),)-$(TAG)
 
 manifest-build: # util target to compose multiarch container manifests from platform specific images.
 	$(MAKE) manifest-create
 	$(foreach PLATFORM,$(PLATFORMS),\
 		$(if $(filter $(PLATFORM),windows/amd64),\
 			$(foreach OS_VERSION,$(OS_VERSIONS),\
-				$(MAKE) manifest-add OS_VERSION=$(OS_VERSION) PLATFORM=$(PLATFORM);\
+				$(MAKE) manifest-add CONTAINER_BUILDER=$(CONTAINER_BUILDER) OS=windows OS_VERSION=$(OS_VERSION) PLATFORM=$(PLATFORM);\
 			),\
 			$(MAKE) manifest-add PLATFORM=$(PLATFORM);\
 		)\