Update make version

Signed-off-by: Tamal Saha <tamal@appscode.com>

Author: tamalsaha

Makefile

@@ -82,12 +82,12 @@ build-%:
 all-build: $(addprefix build-, $(subst /,_, $(BIN_PLATFORMS)))
 
 version:
-	@echo version=$(VERSION)
-	@echo version_strategy=$(version_strategy)
-	@echo git_tag=$(git_tag)
-	@echo git_branch=$(git_branch)
-	@echo commit_hash=$(commit_hash)
-	@echo commit_timestamp=$(commit_timestamp)
+	@echo ::set-output name=version::$(VERSION)
+	@echo ::set-output name=version_strategy::$(version_strategy)
+	@echo ::set-output name=git_tag::$(git_tag)
+	@echo ::set-output name=git_branch::$(git_branch)
+	@echo ::set-output name=commit_hash::$(commit_hash)
+	@echo ::set-output name=commit_timestamp::$(commit_timestamp)
 
 gen:
 	./hack/codegen.sh