ci: use pytest junit export for gitlab ci

.gitlab-ci.yml

@@ -61,6 +61,8 @@ stages:
   after_script:
     - mv .coverage .coverage.${CI_JOB_ID}
   artifacts:
+    reports:
+      junit: ${CI_PROJECT_DIR}/report.xml
     paths:
       - ${CI_PROJECT_DIR}/.coverage.${CI_JOB_ID}
     when: on_success

pytest.ini

@@ -19,5 +19,5 @@
 
 [pytest]
 pep8ignore = docs/conf.py ALL
-addopts = --pep8 --doctest-glob="*.rst" --doctest-modules --cov=invenio_uploadbyurl --cov-report=term-missing
+addopts = --pep8 --doctest-glob="*.rst" --doctest-modules --cov=invenio_uploadbyurl --cov-report=term-missing --junitxml=report.xml
 testpaths = docs tests invenio_uploadbyurl