Change ubuntu manpage link from bionic to noble

[urfeex]

While there is a redirection in place, the target URL technically doesn't exist anymore.

This should fix the check_links workflow.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 77.49%. Comparing base (2e9e513) to head (f28e406).
⚠️ Report is 2 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #374      +/-   ##
==========================================
- Coverage   77.89%   77.49%   -0.41%     
==========================================
  Files          92       92              
  Lines        4158     4159       +1     
  Branches      461      461              
==========================================
- Hits         3239     3223      -16     
- Misses        681      697      +16     
- Partials      238      239       +1     

Flag	Coverage Δ
start_ursim	81.13% <ø> (-2.96%)	⬇️
ur20-latest	75.60% <ø> (ø)
ur5-3.14.3	76.10% <ø> (-0.24%)	⬇️
ur5e-10.7.0	70.80% <ø> (ø)
ur5e-5.9.4	76.06% <ø> (-0.11%)	⬇️

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