Fix/multichain support

[0xArdi]

Fixes

This PR fixes multiple issues with multichain support.

Types of changes

What types of changes does your code introduce? (A breaking change is a fix or feature that would cause existing functionality and APIs to not work as expected.)
Put an x in the box that applies

• Non-breaking fix (non-breaking change which fixes an issue)
• Breaking fix (breaking change which fixes an issue)
• Non-breaking feature (non-breaking change which adds functionality)
• Breaking feature (breaking change which adds functionality)
• Refactor (non-breaking change which changes implementation)
• Messy (mixture of the above - requires explanation!)

Checklist

Put an x in the boxes that apply.

• I have read the CONTRIBUTING doc
• I am making a pull request against the main branch (left side). Also you should start your branch off our main.
• Lint and unit tests pass locally with my changes
• I have added tests that prove my fix is effective or that my feature works
• I have locally run services that could be impacted and they do not present failures derived from my changes
• Public-facing documentation has been updated with the changes affected by this PR. Even if the provided contents are not in their final form, all significant information must be included.
• Any backwards-incompatible/breaking change has been clearly documented in the upgrading document.

[codecov]

Codecov Report

Attention: 1 lines in your changes are missing coverage. Please review.

Comparison is base (777973d) 94.13% compared to head (bd2de6e) 94.14%.

Files	Patch %	Lines
...lory/skills/abstract_round_abci/behaviour_utils.py	75.00%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2109   +/-   ##
=======================================
  Coverage   94.13%   94.14%           
=======================================
  Files         255      255           
  Lines       15810    15811    +1     
=======================================
+ Hits        14883    14885    +2     
+ Misses        927      926    -1     

Flag	Coverage Δ
unittests	94.14% <90.90%> (+<0.01%)	⬆️

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