chore: update makefile

Author: codejsha

.github/workflows/go.yml

@@ -26,4 +26,4 @@ jobs:
 
       - name: Test
         working-directory: ${{github.workspace}}/go-algorithm
-        run: make test
+        run: make

go-algorithm/Makefile

@@ -1,5 +1,5 @@
 .PHONY: all
-all: fmt clean build test
+all: download verify test
 
 .PHONY: fmt
 fmt:
@@ -9,6 +9,14 @@ fmt:
 clean:
 	go clean
 
+.PHONY: download
+download:
+	go mod download -x
+
+.PHONY: verify
+verify:
+	go mod verify
+
 .PHONY: build
 build:
 	go build ./...