Add final newline to workspace.json

Author: grahamd99

docs/diagrams/structurizr/current/workspace.json

@@ -244,4 +244,4 @@
       "title" : "Local Lung Cancer Risk Check System Context – Full View (current state)"
     } ]
   }
-}
+}

docs/diagrams/structurizr/pilot/workspace.json

@@ -374,4 +374,4 @@
       "title" : "Lung Cancer Risk Check System Context – Full View (Pilot state)"
     } ]
   }
-}
+}