Update coverage report path in CI configuration

In the file .gitlab-ci.yml, the path to the coverage report file has been updated. It has been changed from `cooperative_cuisine/coverage.xml` to `coverage.xml`, adjusting the directory where the report file is located.

.gitlab-ci.yml

@@ -10,7 +10,7 @@ pytest:
     reports:
       coverage_report:
         coverage_format: cobertura
-        path: cooperative_cuisine/coverage.xml
+        path: coverage.xml
 
 pages:
   script: