Flip order of steps to avoid messing with go.mod

.gitlab-ci.yml

@@ -18,8 +18,8 @@ test:
   stage: test
   image: golang:1.14
   script:
-    - go get github.com/boumenot/gocover-cobertura
     - go test -v -cover -coverprofile=cover.out ./...
+    - go get github.com/boumenot/gocover-cobertura
     - gocover-cobertura < cover.out > cover.xml
   artifacts:
     reports: