fix(protocol): Don't reserve memory on packet decoding error

[HookWoods]

Description

This MR fix #354 by returning in client poll function to avoid reserving 4096 bytes for each wrong packet

Testing

Using the small program provided in #354 and see that ram never went up

Checklist

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

• 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?

[Commandcracker]

Works 👍
Now there is only rate limiting left (for another pr) so we don't burn the CPU :P

Normal

Spam

[Commandcracker]

Wait, shouldn't it return false ?

[Snowiiii]

Looks good.
Thank you @HookWoods