Update jupyterhub security link

[blink1073]

No description provided.

[codecov]

Codecov Report

Base: 80.49% // Head: 79.55% // Decreases project coverage by -0.94% ⚠️

Coverage data is based on head (ad34238) compared to base (89b35f4).
Patch has no changes to coverable lines.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1200      +/-   ##
==========================================
- Coverage   80.49%   79.55%   -0.94%     
==========================================
  Files          68       68              
  Lines        8119     8119              
  Branches     1583     1583              
==========================================
- Hits         6535     6459      -76     
- Misses       1171     1248      +77     
+ Partials      413      412       -1     

Impacted Files	Coverage Δ
jupyter_server/nbconvert/handlers.py	29.09% <0.00%> (-50.00%)	⬇️
jupyter_server/_tz.py	94.11% <0.00%> (-5.89%)	⬇️
...ter_server/services/kernels/connection/channels.py	60.17% <0.00%> (-2.00%)	⬇️
jupyter_server/extension/handler.py	67.69% <0.00%> (-1.54%)	⬇️
jupyter_server/services/contents/filemanager.py	74.24% <0.00%> (-1.51%)	⬇️
jupyter_server/gateway/managers.py	83.37% <0.00%> (-0.24%)	⬇️
jupyter_server/serverapp.py	79.94% <0.00%> (-0.09%)	⬇️

Help us with your feedback. Take ten seconds to tell us how you rate us. Have a feature suggestion? Share it here.

☔ View full report at Codecov.
📢 Do you have feedback about the report comment? Let us know in this issue.

[blink1073]

@meeseeksdev please backport to 1.x