[CON-146] fix: deflake address test

[arajasek]

This test has raciness around access to the shared Config object, which means it shouldn't run in parallel. The entire suite is pretty fast, so I'm not concerned about slowing our test suite down by much.

[github-actions]

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Build	Format	Lint	Breaking	Updated (UTC)
✅ passed	✅ passed	✅ passed	✅ passed	Dec 17, 2025, 3:12 PM

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 43.15%. Comparing base (3b42d18) to head (62aea14).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2619      +/-   ##
==========================================
+ Coverage   43.11%   43.15%   +0.03%     
==========================================
  Files        1867     1867              
  Lines      154112   154112              
==========================================
+ Hits        66452    66513      +61     
+ Misses      81686    81629      -57     
+ Partials     5974     5970       -4     

Flag	Coverage Δ
sei-chain	44.60% <ø> (+0.01%)	⬆️
sei-cosmos	38.03% <ø> (ø)
sei-db	69.06% <ø> (ø)
sei-tendermint	47.51% <ø> (+0.15%)	⬆️

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see 19 files with indirect coverage changes

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