ci: push dev docker image to packages (#384)

Makefile

@@ -1,15 +1,25 @@
 cmd := "bash"
 msg := ""
-IMAGE_NAME := actions_github_pages_dev:latest
+IMAGE_NAME := docker.pkg.github.com/peaceiris/actions-gh-pages/dev:latest
 NODE_VERSION := $(shell cat ./.nvmrc)
-DOCKER_BUILD := docker build . -t $(IMAGE_NAME) --build-arg NODE_VERSION=$(NODE_VERSION)
 DOCKER_RUN := docker run --rm -i -t -v ${PWD}:/repo -v ~/.gitconfig:/root/.gitconfig $(IMAGE_NAME)
 DOCKER_RUN_CI := docker run --rm -v ${PWD}:/repo $(IMAGE_NAME)
 
 
 .PHONY: build
 build:
-	$(DOCKER_BUILD)
+	docker build . \
+		--build-arg NODE_VERSION=$(NODE_VERSION) \
+		--cache-from=${IMAGE_NAME} \
+		-t $(IMAGE_NAME)
+
+.PHONY: pull
+pull:
+	docker pull ${IMAGE_NAME}
+
+.PHONY: push
+push:
+	docker push ${IMAGE_NAME}
 
 .PHONY: run
 run: