Switch to MassTransit for distributed caching

Updated the distributed caching transport to use MassTransit instead of ProtoActor, aligning with our existing MassTransit broker. Additionally, disabled agent usage for consistency with the current configuration. These changes streamline our configuration and ensure uniformity in our transport mechanisms.

src/apps/Elsa.Server.Web/Program.cs

@@ -66,10 +66,10 @@
 const bool useReadOnlyMode = false;
 const bool useSignalR = false; // Disabled until Elsa Studio sends authenticated requests.
 const WorkflowRuntime workflowRuntime = WorkflowRuntime.ProtoActor;
-const DistributedCachingTransport distributedCachingTransport = DistributedCachingTransport.ProtoActor;
+const DistributedCachingTransport distributedCachingTransport = DistributedCachingTransport.MassTransit;
 const MassTransitBroker massTransitBroker = MassTransitBroker.Memory;
 const bool useMultitenancy = false;
-const bool useAgents = true;
+const bool useAgents = false;
 const bool useSecrets = true;
 
 var builder = WebApplication.CreateBuilder(args);