fix: Removal of self while running OnSimulationUpdate

[Eideren]

PR Details

The following

public void SimulationUpdate(BepuSimulation simulation, float simTimeStep)
{
    Entity.Scene = null;
}

threw an exception as the caller contains a reference to this component in the collection it foreaches over.
This PR ensures that the caller handles component removal while running those callbacks properly.

Related Issue

None.

Types of changes

• Docs change / refactoring / dependency upgrade
• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist

• My change requires a change to the documentation.
• I have added tests to cover my changes.
• All new and existing tests passed.
• I have built and run the editor to try this change out.