fix(consensus): various fixes and test coverage

[sebastijankuzner]

Summary

Checklist

• Tests (if necessary)
• Ready to be merged

[codecov]

Codecov Report

❌ Patch coverage is 98.57143% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 79.52%. Comparing base (aa71df8) to head (201b9ba).

Files with missing lines	Patch %	Lines
...s/consensus/source/processors/message-processor.ts	94.44%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #1479      +/-   ##
===========================================
+ Coverage    78.54%   79.52%   +0.98%     
===========================================
  Files          953      964      +11     
  Lines        16578    17127     +549     
  Branches      2370     2543     +173     
===========================================
+ Hits         13021    13621     +600     
+ Misses        3552     3499      -53     
- Partials         5        7       +2     

Flag	Coverage Δ
contracts	91.76% <ø> (?)
packages	79.20% <98.57%> (+0.66%)	⬆️

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