Handle client ping requests

[neeleshpoli]

Description

Handle the ping requests sent by the client. Seems like all the code already exists, but it was never added to the deserialization process 🤷‍♂️ .

Testing

Joining the server, opening Debug + Bandwidth and Ping (F3 +3).

Checklist

Things need to be done before this Pull Request can be merged.

• Add packet to play packet deserialization process
• Code is well-formatted and adheres to project style guidelines: cargo fmt
• Code does not produce any clippy warnings: cargo clippy
• All unit tests pass: cargo test
• I added new unit tests, so other people don't accidentally break my code by changing other parts of the codebase. How?

[Snowiiii]

Upsi. Seems like i forgot that when Porting from the Enum Packet