update builder to use go1.25.5

[cpanato]

Summary

• update builder to use go1.25.5

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 44.95%. Comparing base (cf238ac) to head (85d62e5).
⚠️ Report is 527 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff             @@
##             main    #2235       +/-   ##
===========================================
- Coverage   57.93%   44.95%   -12.98%     
===========================================
  Files          50       72       +22     
  Lines        3119     4689     +1570     
===========================================
+ Hits         1807     2108      +301     
- Misses       1154     2344     +1190     
- Partials      158      237       +79     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.