Shouldn't database transaction disposal be async?

[ziaulhasanhamim]

Issue or suggestion

In the docs synchronous disposal shown using using var instead of await using var

[roji]

Where in the docs?

[ziaulhasanhamim]

EntityFramework.Docs/samples/core/Saving/Transactions/ControllingTransaction.cs

Line 20 in d094fd7

using var transaction = await context.Database.BeginTransactionAsync();

[roji]

Thanks, submitted #4960 to fix this.