Adding multiple python apps in the same folder without a venv will try to create a venv multiple times

```c#
#:package Aspire.Hosting.Python@13.1.0-*
#:package Aspire.Hosting.JavaScript@13.1.0-*
#:sdk Aspire.AppHost.Sdk@13.1.0-*

var builder = DistributedApplication.CreateBuilder(args);

builder.AddPythonApp("job1", ".", "app.py");
builder.AddPythonApp("job1", ".", "app2.py");

builder.Build().Run();

```