fix: liquidate command from-address

[toteki]

Description

liquidate command was using borrower address as liquidator

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Author Checklist

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I have...

• included the correct type prefix in the PR title
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[toteki]

Note: This is in the client so it's not state machine breaking. We can merge it into any release.

[adamewozniak]

lgtm just need the test fixed 👍

[codecov-commenter]

Codecov Report

Merging #829 (4cd25a5) into main (4062f6e) will not change coverage.
The diff coverage is 50.00%.

@@           Coverage Diff           @@
##             main     #829   +/-   ##
=======================================
  Coverage   50.93%   50.93%           
=======================================
  Files          64       64           
  Lines        9428     9428           
=======================================
  Hits         4802     4802           
  Misses       4383     4383           
  Partials      243      243           

Impacted Files	Coverage Δ
x/leverage/types/tx.go	0.00% <0.00%> (ø)
x/leverage/simulation/operations.go	91.66% <100.00%> (ø)