pam: remove token auth

[BeryJu]

#936

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 36.28%. Comparing base (6ca45fc) to head (aabf419).
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@             Coverage Diff             @@
##             main     #938       +/-   ##
===========================================
+ Coverage   18.34%   36.28%   +17.93%     
===========================================
  Files         227      219        -8     
  Lines        8393     8047      -346     
===========================================
+ Hits         1540     2920     +1380     
+ Misses       6697     4786     -1911     
- Partials      156      341      +185     

Flag	Coverage Δ
go-e2e	43.06% <ø> (+25.57%)	⬆️
go-integration	18.28% <ø> (?)
go-macos-26	16.58% <ø> (+0.82%)	⬆️
go-ubuntu-24.04	16.14% <ø> (+0.80%)	⬆️
go-ubuntu-24.04-arm	15.76% <ø> (+0.81%)	⬆️
go-windows-2025	15.87% <ø> (+0.78%)	⬆️
swift	3.40% <ø> (ø)

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