fix: return array slice of new passes registrations per month

Author: kamilbaczek

Chapter-1-initial-architecture/Src/Fitnet/Reports/GenerateNewPassesRegistrationsPerMonthReport/DataRetriever/NewPassesRegistrationPerMonthReportDataRetriever.cs

@@ -21,6 +21,6 @@ WHERE EXTRACT(YEAR FROM ""Passes"".""From"") = '{timeProvider.GetUtcNow().Year}'
         var queryDefinition = new CommandDefinition(query, cancellationToken: cancellationToken);
         var newPassesRegistrationsPerMonthDtos = await connection.QueryAsync<NewPassesRegistrationsPerMonthDto>(queryDefinition);
 
-        return newPassesRegistrationsPerMonthDtos.ToList();
+        return [.. newPassesRegistrationsPerMonthDtos];
     }
 }