Use concrete types

src/Vegasco.Server.Api/Cars/DeleteCar.cs

@@ -21,7 +21,7 @@ public static class DeleteCar
 		ILoggerFactory loggerFactory,
 		CancellationToken cancellationToken)
 	{
-		var rows = await dbContext.Cars
+		int rows = await dbContext.Cars
 			.Where(x => x.Id == new CarId(id))
 			.ExecuteDeleteAsync(cancellationToken);
 
@@ -32,7 +32,7 @@ public static class DeleteCar
 
 		if (rows > 1)
 		{
-			var logger = loggerFactory.CreateLogger(nameof(DeleteCar));
+			ILogger logger = loggerFactory.CreateLogger(nameof(DeleteCar));
 			logger.LogWarning("Deleted '{DeletedRowCount}' rows for id '{CarId}'", rows, id);
 		}