BinaryFormatter Exception in .NET 9.0 Upgrade

# Bug Report: BinaryFormatter Exception in .NET 9.0 Upgrade

## Problem Description
When upgrading our project to **.NET 9.0**, we encounter the following error:

```
13:44:52 TraceHelper. [ERR] - :
EventListener: Exception at connect "System.PlatformNotSupportedException:
BinaryFormatter serialization and deserialization have been removed. See https://aka.ms/binaryformatter for more information.
at System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Serialize(Stream serializationStream, Object graph)
at Microsoft.Hpc.Scheduler.Store.EventListener.ConnectToServer()" in method at :
```

This issue is caused by the **removal of `BinaryFormatter` from .NET 9.0**, as outlined in the .NET announcements:
🔗 [BinaryFormatter Removal - .NET 9.0](https://github.com/dotnet/announcements/issues/293)

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## Steps to Reproduce
1. Upgrade the project to **.NET 9.0**
2. Run the application
3. Observe the exception when `Microsoft.Hpc.Scheduler.Store.EventListener.ConnectToServer()` is called

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## Expected Behavior
The application should function without throwing a `System.PlatformNotSupportedException`.

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## Environment
- **.NET Version**: .NET 9.0
- **Affected Component**: `Microsoft.Hpc.Scheduler.Store.EventListener`
- **OS**: _(Provide OS details if relevant)_
- **Any Additional Dependencies**: _(List if applicable)_

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## Possible Solution / Workaround
Would it be possible to update `Microsoft.Hpc.Scheduler.Store.EventListener` to avoid using `BinaryFormatter` and switch to a supported serialization mechanism?

Is there an alternative approach to handle this in .NET 9.0?