fix(test): use unique local addresses

[arajasek]

Attempt to avoid flaky failures like this one

[github-actions]

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Build	Format	Lint	Breaking	Updated (UTC)
✅ passed	✅ passed	✅ passed	✅ passed	Feb 5, 2026, 4:12 PM

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 46.89%. Comparing base (c50da24) to head (b24869b).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2805   +/-   ##
=======================================
  Coverage   46.89%   46.89%           
=======================================
  Files        1965     1965           
  Lines      160600   160600           
=======================================
+ Hits        75312    75319    +7     
+ Misses      78760    78750   -10     
- Partials     6528     6531    +3     

Flag	Coverage Δ
sei-chain	41.46% <ø> (+<0.01%)	⬆️
sei-cosmos	48.12% <ø> (-0.01%)	⬇️
sei-db	68.72% <ø> (ø)

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see 15 files with indirect coverage changes

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