fix wasm hgu

[zjg555543]

• 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.

• Wrote tests

• Updated relevant documentation (docs/)

• Added a relevant changelog entry to the Unreleased section in CHANGELOG.md

• Reviewed Files changed in the github PR explorer

---

For Admin Use:

• Added appropriate labels to PR (ex. wip, ready-for-review, docs)
• Reviewers Assigned
• Squashed all commits, uses message "Merge PR #XYZ: [title]" (coding standards)

[codecov-commenter]

Codecov Report

Merging #3140 (d92cf14) into dev (7a80011) will increase coverage by 0.04%.
The diff coverage is 74.35%.

❗ Current head d92cf14 differs from pull request most recent head a4e753f. Consider uploading reports for the commit a4e753f to get more accurate results

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@@            Coverage Diff             @@
##              dev    #3140      +/-   ##
==========================================
+ Coverage   36.52%   36.56%   +0.04%     
==========================================
  Files         441      441              
  Lines       46281    46320      +39     
==========================================
+ Hits        16902    16935      +33     
- Misses      28130    28136       +6     
  Partials     1249     1249              

Impacted Files	Coverage Δ
x/wasm/handler.go	55.73% <33.33%> (-7.31%)	⬇️
x/wasm/types/tx.go	53.51% <100.00%> (+9.41%)	⬆️