feat: use AxelarGMPExecutable in Governance

[ahramy]

AXE-4750

• Use the new executable for AxelarServiceGovernance in axelar-gmp-sdk-solidity
• Bump the package.json version to 5.11.0

Unit Test All Passed:

EVM_VERSION="london" npm run test;
  359 passing (7s)

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 98.54%. Comparing base (849152c) to head (4b58997).

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #184      +/-   ##
==========================================
- Coverage   98.68%   98.54%   -0.14%     
==========================================
  Files          48       48              
  Lines         759      758       -1     
  Branches      157      157              
==========================================
- Hits          749      747       -2     
  Misses          1        1              
- Partials        9       10       +1     

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