v3.1: fix(repair): keep processing batch in process_replay_updates by using continue (backport of #9339)

[mergify]

process_replay_updates used return to skip non-actionable updates, which aborted processing of the remaining items in the same try_iter batch. Replace the early returns with continue so we only skip the current update and still handle the rest. This aligns with similar patterns in replay_stage. Added a regression test to ensure a skipped update (slot <= root) does not prevent processing a subsequent actionable update in the same call.

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This is an automatic backport of pull request #9339 done by Mergify.

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 83.2%. Comparing base (f9896ad) to head (440a705).

Additional details and impacted files

@@           Coverage Diff           @@
##             v3.1    #9375   +/-   ##
=======================================
  Coverage    83.2%    83.2%           
=======================================
  Files         865      865           
  Lines      375946   375981   +35     
=======================================
+ Hits       313033   313072   +39     
+ Misses      62913    62909    -4     

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