verify expiration is set on hashexpire active expire test

[ranshid]

This might help shed some light on the flakey failure e.g: https://github.com/valkey-io/valkey/actions/runs/16754537665/job/47433388425?pr=2431

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 71.54%. Comparing base (ba7334c) to head (1309777).
⚠️ Report is 3 commits behind head on unstable.

Additional details and impacted files

@@             Coverage Diff              @@
##           unstable    #2440      +/-   ##
============================================
- Coverage     71.56%   71.54%   -0.03%     
============================================
  Files           125      125              
  Lines         69213    69214       +1     
============================================
- Hits          49534    49516      -18     
- Misses        19679    19698      +19     

see 15 files with indirect coverage changes

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