fix: genesis type cast

[kosegor]

Description

closes: #XXXX

---

Author Checklist

All items are required. Please add a note to the item if the item is not applicable and
please add links to any relevant follow up issues.

I have...

• included the correct type prefix in the PR title
• added ! to the type prefix if API or client breaking change
• added appropriate labels to the PR
• targeted the correct branch (see PR Targeting)
• provided a link to the relevant issue or specification
• added a changelog entry to CHANGELOG.md
• included comments for documenting Go code
• updated the relevant documentation or specification
• reviewed "Files changed" and left comments if necessary
• confirmed all CI checks have passed

Reviewers Checklist

All items are required. Please add a note if the item is not applicable and please add
your handle next to the items reviewed if you only reviewed selected items.

I have...

• confirmed the correct type prefix in the PR title
• confirmed all author checklist items have been addressed
• reviewed state machine logic
• reviewed API design and naming
• reviewed documentation is accurate
• reviewed tests and test coverage
• manually tested (if applicable)

[codecov]

Codecov Report

Merging #1968 (112e720) into main (89ee005) will increase coverage by 1.17%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main    #1968      +/-   ##
==========================================
+ Coverage   66.92%   68.09%   +1.17%     
==========================================
  Files         100      100              
  Lines        8017     8017              
==========================================
+ Hits         5365     5459      +94     
+ Misses       2232     2140      -92     
+ Partials      420      418       -2     

Impacted Files	Coverage Δ
x/leverage/keeper/genesis.go	87.23% <100.00%> (+78.72%)	⬆️

... and 1 file with indirect coverage changes

[toteki]

Looks good - thanks for catching this fix