chore: fix typo in comment

[vetclippy]

👮🏻👮🏻👮🏻 !!!! REFERENCE THE PROBLEM YOUR ARE SOLVING IN THE PR TITLE AND DESCRIBE YOUR SOLUTION HERE !!!! DO NOT FORGET !!!! 👮🏻👮🏻👮🏻

fix typo in comment

PR Checklist:

• Have you read the CONTRIBUTING.md?
• Does your PR follow the C4 patch requirements?
• Have you rebased your work on top of the latest master?
• Have you checked your code compiles? (make)
• Have you included tests for any non-trivial functionality?
• Have you checked your code passes the unit tests? (make test)
• Have you checked your code formatting is correct? (go fmt)
• Have you checked your basic code style is fine? (golangci-lint run)
• If you added any dependencies, have you checked they do not contain any known vulnerabilities? (go list -json -m all | nancy sleuth)
• If your changes affect the client infrastructure, have you run the integration test?
• If your changes affect public APIs, does your PR follow the C4 evolution of public contracts?
• If your code changes public APIs, have you incremented the crate version numbers and documented your changes in the CHANGELOG.md?
• If you are contributing for the first time, please read the agreement in CONTRIBUTING.md now and add a comment to this pull request stating that your PR is in accordance with the Developer's Certificate of Origin.

Thank you for your code, it's appreciated! :)

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 33.44%. Comparing base (4094929) to head (34f26ea).
⚠️ Report is 2 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1198   +/-   ##
=======================================
  Coverage   33.44%   33.44%           
=======================================
  Files         106      106           
  Lines       15765    15765           
=======================================
  Hits         5272     5272           
  Misses       9450     9450           
  Partials     1043     1043           

Flag	Coverage Δ
integration_tests	25.97% <ø> (ø)
integration_tests_byzantine	11.50% <ø> (ø)
integration_tests_gov	11.74% <ø> (ø)
integration_tests_grpc	11.74% <ø> (ø)
integration_tests_ibc	26.71% <ø> (ø)
integration_tests_ledger	11.73% <ø> (ø)
integration_tests_slow	11.73% <ø> (ø)
integration_tests_solomachine	11.54% <ø> (ø)
integration_tests_upgrade	11.74% <ø> (ø)

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[vetclippy]

@thomas-nguy Thanks for your review. I have signd this PR. Please review again.