[CON-154] fix: test: ensure own precommit before adding votes

[arajasek]

This test can flake (eg here), and I'm pretty sure it's because the network moves onto the next height before we've ensured our own precommit. Switching the order of operations should prevent this.

[github-actions]

The latest Buf updates on your PR. Results from workflow Buf / buf (pull_request).

Build	Format	Lint	Breaking	Updated (UTC)
✅ passed	✅ passed	✅ passed	✅ passed	Dec 23, 2025, 6:52 PM

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 41.97%. Comparing base (ffc83e6) to head (7d49cb1).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2635      +/-   ##
==========================================
+ Coverage   41.95%   41.97%   +0.01%     
==========================================
  Files        1018     1018              
  Lines       84809    84809              
==========================================
+ Hits        35583    35595      +12     
+ Misses      45878    45862      -16     
- Partials     3348     3352       +4     

Flag	Coverage Δ
sei-cosmos	38.20% <ø> (ø)
sei-db	69.06% <ø> (ø)
sei-tendermint	47.23% <ø> (+0.03%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.
see 18 files with indirect coverage changes

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.