Delete the extra "or" in front of the second url

[jonnygrout]

This change was made in #460, but somehow it was not here.

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[blink1073]

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[codecov]

Codecov Report

Base: 79.14% // Head: 80.39% // Increases project coverage by +1.25% 🎉

Coverage data is based on head (eaf3d40) compared to base (f3fe168).
Patch coverage: 100.00% of modified lines in pull request are covered.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1194      +/-   ##
==========================================
+ Coverage   79.14%   80.39%   +1.25%     
==========================================
  Files          68       68              
  Lines        8117     8117              
  Branches     1584     1584              
==========================================
+ Hits         6424     6526     +102     
+ Misses       1280     1176     -104     
- Partials      413      415       +2     

Impacted Files	Coverage Δ
jupyter_server/serverapp.py	79.94% <100.00%> (+7.80%)	⬆️
jupyter_server/extension/handler.py	67.69% <0.00%> (-1.54%)	⬇️
jupyter_server/gateway/managers.py	83.37% <0.00%> (-0.24%)	⬇️
jupyter_server/base/handlers.py	78.82% <0.00%> (+0.58%)	⬆️
jupyter_server/utils.py	85.46% <0.00%> (+5.81%)	⬆️
jupyter_server/services/shutdown.py	100.00% <0.00%> (+23.07%)	⬆️

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