Update WorkflowDefinitionService to use LatestOrPublished (#343)

Replaced the version option from Published to LatestOrPublished when fetching workflow definitions. This ensures the list includes the latest versions if available, improving flexibility and accuracy in the workflow data displayed.

src/modules/Elsa.Studio.Workflows/Components/WorkflowInstanceList/WorkflowInstanceList.razor.cs

@@ -65,7 +65,7 @@ protected override async Task OnInitializedAsync()
 
     private async Task LoadWorkflowDefinitionsAsync()
     {
-        var workflowDefinitionsResponse = await WorkflowDefinitionService.ListAsync(new ListWorkflowDefinitionsRequest(), VersionOptions.Published);
+        var workflowDefinitionsResponse = await WorkflowDefinitionService.ListAsync(new ListWorkflowDefinitionsRequest(), VersionOptions.LatestOrPublished);
 
         WorkflowDefinitions = workflowDefinitionsResponse.Items;
     }