Update .gitlab-ci.yml file

.gitlab-ci.yml

@@ -43,7 +43,7 @@ testsuite:
     - coverage report
     - coverage html
     - coverage xml
-  coverage: "/TOTAL.*? (100(?:\.0+)?\%\|[1-9]?\d(?:\.\d+)?\%)$/"
+  coverage: '/TOTAL.*? (100(?:\.0+)?\%\|[1-9]?\d(?:\.\d+)?\%)$/'
   artifacts:
     when: always
     paths: