Add ContinueAsNew(ContinueAsNewOptions) override to FunctionsOrchestrationContext

Forward the new ContinueAsNew overload that accepts ContinueAsNewOptions
(with NewVersion) to the inner context. Without this override, the base
class default silently drops the options, preventing version migration
via ContinueAsNew from working in Azure Functions isolated worker.

Depends on: microsoft/durabletask-dotnet#682 (adds ContinueAsNewOptions)
Requires bumping Microsoft.DurableTask.Worker.Grpc to the version that
includes ContinueAsNewOptions.

Author: YunchuWang

src/Worker.Extensions.DurableTask/FunctionsOrchestrationContext.cs

@@ -127,6 +127,12 @@ public override void ContinueAsNew(object? newInput = null, bool preserveUnproce
         this.innerContext.ContinueAsNew(newInput, preserveUnprocessedEvents);
     }
 
+    public override void ContinueAsNew(ContinueAsNewOptions? options, object? newInput, bool preserveUnprocessedEvents)
+    {
+        this.EnsureLegalAccess();
+        this.innerContext.ContinueAsNew(options, newInput, preserveUnprocessedEvents);
+    }
+
     public override Task CreateTimer(DateTime fireAt, CancellationToken cancellationToken)
     {
         this.EnsureLegalAccess();