Code review: set quickfix in rule JSON

Author: antonioaversa

sonar-xml-plugin/src/main/resources/org/sonar/l10n/xml/rules/xml/S7207.json

@@ -34,5 +34,5 @@
       "A4"
     ]
   },
-  "quickfix": "unknown"
+  "quickfix": "infeasible"
 }