Add JUnit test reporting to CI pipeline

.gitlab-ci.yml

@@ -8,7 +8,12 @@ stages:
 test:
   stage: test
   image: "ai/test:go"
-  script: "go-test-runner ."
+  script:
+    - "go get -u github.com/jstemmer/go-junit-report"
+    - "go-test-runner ./... 2>&1 | go-junit-report > junit.xml"
+  artifacts:
+    reports:
+      junit: junit.xml
 
 build:src:
   stage: build_src