deps: use published smooth-operator

[tzemanovic]

Describe your changes

related to #4143

Checklist before merging

• If this PR has some consensus breaking changes, I added the corresponding breaking:: labels
  • This will require 2 reviewers to approve the changes
• If this PR requires changes to the docs or specs, a corresponding PR is opened in the namada-docs repo
  • Relevant PR if applies:
• If this PR affects services such as namada-indexer or namada-masp-indexer, a corresponding PR is opened in that repo
  • Relevant PR if applies:

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 74.46%. Comparing base (ea76477) to head (3e99435).
Report is 5 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4183      +/-   ##
==========================================
- Coverage   74.46%   74.46%   -0.01%     
==========================================
  Files         341      342       +1     
  Lines      107710   107722      +12     
==========================================
+ Hits        80207    80210       +3     
- Misses      27503    27512       +9     

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