fix: fix remaining altdesktop links

[dlech]

There were still a few links incorrectly pointing back to altdesktop/python-dbus-next on GitHub.

[codecov]

Codecov Report

Base: 82.18% // Head: 74.75% // Decreases project coverage by -7.42% ⚠️

Coverage data is based on head (7ffaa88) compared to base (98d5c5a).
Patch coverage: 0.00% of modified lines in pull request are covered.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #169      +/-   ##
==========================================
- Coverage   82.18%   74.75%   -7.43%     
==========================================
  Files          27       27              
  Lines        3137     3137              
  Branches      647      647              
==========================================
- Hits         2578     2345     -233     
- Misses        342      602     +260     
+ Partials      217      190      -27     

Impacted Files	Coverage Δ
src/dbus_fast/__version__.py	0.00% <0.00%> (ø)
src/dbus_fast/glib/proxy_object.py	16.27% <0.00%> (-66.67%)	⬇️
src/dbus_fast/glib/message_bus.py	19.67% <0.00%> (-60.66%)	⬇️
src/dbus_fast/message_bus.py	71.27% <0.00%> (-0.37%)	⬇️
src/dbus_fast/proxy_object.py	78.52% <0.00%> (+2.01%)	⬆️

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[bdraco]

Thanks