fix: handle AuthError while probing for adapters

[bdraco]

In home-assistant/core#116776 the user had a core install where the bus socket exists, and was accessable, but the user lacked permission to access the dbus socket.

Make this non-fatal and log a warning

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 90.59%. Comparing base (8858f88) to head (6062456).
Report is 7 commits behind head on main.

❗ Current head 6062456 differs from pull request most recent head 6fb7e8f. Consider uploading reports for the commit 6fb7e8f to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #130      +/-   ##
==========================================
- Coverage   91.95%   90.59%   -1.37%     
==========================================
  Files          13       13              
  Lines         460      489      +29     
  Branches       80       89       +9     
==========================================
+ Hits          423      443      +20     
- Misses         31       34       +3     
- Partials        6       12       +6     

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