fix(minor-interchain-token-service): fix message type encoding

[cjcobb23]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 1 line in your changes missing coverage. Please review.

Project coverage is 93.49%. Comparing base (badaf87) to head (0e32e94).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
contracts/interchain-token-service/src/abi.rs	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #683      +/-   ##
==========================================
- Coverage   93.51%   93.49%   -0.02%     
==========================================
  Files         237      237              
  Lines       35131    35132       +1     
==========================================
- Hits        32851    32846       -5     
- Misses       2280     2286       +6     

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