Concern about loss of deprecated GraphService.PostAsync methods

[judoscott]

[Obsolete("This method is deprecated and will be removed in a future version of ShopifySharp.")] public virtual async Task<JToken> PostAsync(string graphqlQuery, int? graphqlQueryCost = null, CancellationToken cancellationToken = default)

We were unable to migrate to the latest version of this library because of this issue: https://github.com/nozzlegear/ShopifySharp/issues/1080

Now that its resolved in prerelease I have upgraded a branch and see that the above method is deprecated. Please consider keeping it we have a lot of stuff built on it. If you can't do that please keep it for a significant time to allow time for our migration while using current packages,

Thanks for all the great work