fix(auth): improve unauthorized errors handling

[ernado]

Fix #636

[codecov]

Codecov Report

Merging #637 (c200af5) into main (09e25ef) will decrease coverage by 0.21%.
The diff coverage is 80.00%.

@@            Coverage Diff             @@
##             main     #637      +/-   ##
==========================================
- Coverage   68.73%   68.51%   -0.22%     
==========================================
  Files         421      421              
  Lines       20016    20016              
==========================================
- Hits        13757    13713      -44     
- Misses       5371     5419      +48     
+ Partials      888      884       -4     

Impacted Files	Coverage Δ
telegram/auth.go	0.00% <ø> (-15.39%)	⬇️
telegram/pool.go	0.00% <0.00%> (ø)
telegram/auth/auth.go	50.00% <100.00%> (-50.00%)	⬇️
telegram/auth/status.go	60.71% <100.00%> (ø)
telegram/connect.go	87.37% <100.00%> (ø)
telegram/updates/update.go	9.52% <0.00%> (-61.91%)	⬇️
telegram/updates/state_channel.go	45.75% <0.00%> (-7.08%)	⬇️
telegram/updates/internal/e2e/server.go	65.38% <0.00%> (-6.16%)	⬇️
telegram/updates/state.go	48.71% <0.00%> (-2.57%)	⬇️
... and 3 more

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