Keep ordering in count subquery

[aidanharan]

Keep the ordering in the count subquery.

Before PR the query generated by accounts.count(:firm_id) in CalculationsTest#test_order_should_apply_before_count was:

EXEC sp_executesql N'SELECT COUNT(count_column) FROM (SELECT [accounts].[firm_id] AS count_column FROM [accounts] ORDER BY [accounts].[id] ASC OFFSET 0 ROWS FETCH NEXT @0 ROWS ONLY) subquery_for_count', N'@0 int', @0 = 4

It should be (DESC instead of ASC):

EXEC sp_executesql N'SELECT COUNT(count_column) FROM (SELECT [accounts].[firm_id] AS count_column FROM [accounts] ORDER BY [accounts].[id] DESC OFFSET 0 ROWS FETCH NEXT @0 ROWS ONLY) subquery_for_count', N'@0 int', @0 = 4

Fixes test:

https://github.com/rails-sqlserver/activerecord-sqlserver-adapter/actions/runs/11072699849/job/30767524773

  2) Failure:
CalculationsTest#test_order_should_apply_before_count [/usr/local/bundle/bundler/gems/rails-13d5f8720892/activerecord/test/cases/calculations_test.rb:261]:
Expected: 4
  Actual: 3