feat: add batch message and update double echo

[atanmarko]

Description

Cleanup double echo protoc from bincode serialization.
Refactor a bit message pasing

Fixes TP-788

PR Checklist:

• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I have added or updated tests that comprehensively prove my change is effective or that my feature works

[codecov]

Codecov Report

Attention: 5 lines in your changes are missing coverage. Please review.

Comparison is base (014ddf6) 62.79% compared to head (1416d68) 62.86%.
Report is 1 commits behind head on main.

Files	Patch %	Lines
crates/topos-p2p/src/runtime/handle_command.rs	71.42%	2 Missing ⚠️
...es/topos-p2p/src/runtime/handle_event/gossipsub.rs	83.33%	2 Missing ⚠️
crates/topos-p2p/src/behaviour/gossip.rs	96.15%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #383      +/-   ##
==========================================
+ Coverage   62.79%   62.86%   +0.07%     
==========================================
  Files         219      219              
  Lines       11812    11793      -19     
==========================================
- Hits         7417     7414       -3     
+ Misses       4395     4379      -16     

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