Fix failed job "test-with-junit-reports"

Edits the "ci\test.sh" file so coverage reports are now generated

Edits the ".gitlab-ci.yml" file to upload the coverage report as part of the junit reports. Additionally uploads the coverage as an artifact for inspecting manually if more details than what GitLab shows is needed

This results in the test results being viewable in the pipelines with the "Code Coverage" asset installed & used in the unity project