ci: Adjust coverage regex to also match int

Part-of: <https://dev.funkwhale.audio/funkwhale/funkwhale/-/merge_requests/2757>

.gitlab-ci.yml

@@ -287,7 +287,7 @@ test_front:
       coverage_report:
         coverage_format: cobertura
         path: front/coverage/cobertura-coverage.xml
-  coverage: '/All files\s+\|\s+\d+\.\d+\s+\|\s+\d+\.\d+\s+\|\s+\d+\.\d+\s+\|\s+(\d+\.\d+)\s+.*/'
+  coverage: '/All files\s+(?:\|\s+((?:\d+\.)?\d+)\s+){4}.*/'
 
 build_metadata:
   stage: build