Change semicolon to comma

src/main/java/nl/tudelft/queue/service/LabService.java

@@ -165,7 +165,7 @@ public class LabService {
 		String name = sCache.getOrThrow(qSession.getId()).getName();
 		var requests = rts.convertRequestsToView(qSession.getRequests());
 		return fs.writeTempResource("session-" + name + "-" + requests.hashCode() + ".csv",
-				() -> CsvHelper.writeCsvValues(finalHeader, requests, ';'));
+				() -> CsvHelper.writeCsvValues(finalHeader, requests, ','));
 	}
 
 	public List<Resource> sessionDTOToCsv(SessionSummaryDTO session) throws IOException {