Makefile: Add target build

kata-containers's ci will re-build and re-install golangci-lint every
time it did the staic check.
So run test of golangci-lint with build will make it slow.
Add target build to make golangci-lint just build but not test.

Fixes: #458

Signed-off-by: Hui Zhu <[email protected]>

Author: teawater

Makefile

@@ -1,10 +1,12 @@
-test:
-	go build -o golangci-lint ./cmd/golangci-lint
+test: build
 	GL_TEST_RUN=1 ./golangci-lint run -v
 	GL_TEST_RUN=1 ./golangci-lint run --fast --no-config -v --skip-dirs 'test/testdata_etc,pkg/golinters/goanalysis/(checker|passes)'
 	GL_TEST_RUN=1 ./golangci-lint run --no-config -v --skip-dirs 'test/testdata_etc,pkg/golinters/goanalysis/(checker|passes)'
 	GL_TEST_RUN=1 go test -v ./...
 
+build:
+	go build -o golangci-lint ./cmd/golangci-lint
+
 test_race:
 	go build -race -o golangci-lint ./cmd/golangci-lint
 	GL_TEST_RUN=1 ./golangci-lint run -v --deadline=5m