fix ibc-alpha sims

[fedekunze]

Description

Fixes build and sims

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For contributor use:

• Targeted PR against correct branch (see CONTRIBUTING.md)
• Linked to Github issue with discussion and accepted design OR link to spec that describes this work.
• Code follows the module structure standards.
• Wrote unit and integration tests
• Updated relevant documentation (docs/) or specification (x/<module>/spec/)
• Added relevant godoc comments.
• Added a relevant changelog entry to the Unreleased section in CHANGELOG.md
• Re-reviewed Files changed in the Github PR explorer

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For admin use:

• Added appropriate labels to PR (ex. WIP, R4R, docs, etc)
• Reviewers assigned
• Squashed all commits, uses message "Merge pull request #XYZ: [title]" (coding standards)

[codecov]

Codecov Report

Merging #5909 into ibc-alpha will increase coverage by 2.24%.
The diff coverage is 74.86%.

@@              Coverage Diff              @@
##           ibc-alpha    #5909      +/-   ##
=============================================
+ Coverage      57.06%   59.30%   +2.24%     
=============================================
  Files            342      397      +55     
  Lines          20056    22988    +2932     
=============================================
+ Hits           11444    13634    +2190     
- Misses          7767     8434     +667     
- Partials         845      920      +75