refactor: update return statement to use array spread syntax in NewPassesRegistrationPerMonthReportDataRetriever

Author: kamilbaczek

Chapter-4-applying-tactical-domain-driven-design/Fitnet/Src/Reports/Fitnet.Reports/GenerateNewPassesRegistrationsPerMonthReport/DataRetriever/NewPassesRegistrationPerMonthReportDataRetriever.cs

@@ -25,6 +25,6 @@ WHERE EXTRACT(YEAR FROM ""Passes"".""From"") = '{timeProvider.GetUtcNow().Year}'
         var newPassesRegistrationsPerMonthDtos =
             await connection.QueryAsync<NewPassesRegistrationsPerMonthDto>(queryDefinition);
 
-        return newPassesRegistrationsPerMonthDtos.ToList();
+        return [.. newPassesRegistrationsPerMonthDtos];
     }
 }