L2SS-892: Fix coverage reporting through regex in .gitlab-ci

.gitlab-ci.yml

@@ -518,6 +518,7 @@ unit_test:
   script:
     - cd tangostationcontrol
     - tox -e cover
+  coverage: '/(?i)total.*? (100(?:\.0+)?\%|[1-9]?\d(?:\.\d+)?\%)$/'
   artifacts:
     reports:
       coverage_report: