fix(server): unregister error event listener

[matthieusieben]

Types of changes

• Bug fix (a non-breaking change which fixes an issue)
• New feature (a non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Description

Checklist:

• My change requires a change to the documentation.
• I have updated the documentation accordingly. (PR: #)
• I have added tests to cover my changes (if not applicable, please state why)
• All new and existing tests are passing.

[clarkdo]

Can you please fix the CI error?

[codecov-commenter]

Codecov Report

Merging #9245 (f4a39c6) into dev (c56d484) will increase coverage by 0.03%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##              dev    #9245      +/-   ##
==========================================
+ Coverage   65.13%   65.16%   +0.03%     
==========================================
  Files          94       94              
  Lines        4101     4105       +4     
  Branches     1124     1124              
==========================================
+ Hits         2671     2675       +4     
  Misses       1152     1152              
  Partials      278      278              

Flag	Coverage Δ
unittests	65.16% <100.00%> (+0.03%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
packages/server/src/listener.js	100.00% <100.00%> (ø)

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[pi0]

Thanks!