fix: do not resub router on message

[dionisio-bot]

Backport of #36459

[changeset-bot]

⚠️ No Changeset found

Latest commit: 50453f7

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[dionisio-bot]

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[github-actions]

PR Preview Action v1.6.2
🚀 View preview at https://RocketChat.github.io/Rocket.Chat/pr-preview/pr-36461/
Built to branch gh-pages at 2025-07-17 19:44 UTC. Preview will be ready when the GitHub Pages deployment is complete.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Please upload report for BASE (release-7.8.1@4fda8af). Learn more about missing BASE report.

Additional details and impacted files

@@               Coverage Diff                @@
##             release-7.8.1   #36461   +/-   ##
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  Coverage                 ?   63.53%           
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  Files                    ?     3112           
  Lines                    ?   103849           
  Branches                 ?    19569           
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  Hits                     ?    65977           
  Misses                   ?    35320           
  Partials                 ?     2552           

Flag	Coverage Δ
e2e	54.10% <100.00%> (?)
unit	69.13% <ø> (?)

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