Implement gossipsub testing as per leanSpec tests

[shariqnaiyer]

Describe the feature

https://github.com/leanEthereum/leanSpec/blob/main/tests/lean_spec/subspecs/networking/test_gossipsub.py

Additional context

No response

[Dsorken]

Can I take look at this

[zemse]

hey @Dsorken have you started working on this or can I try this?