smoke_test: Add "publish with invalid authentication" check

[Turbo87]

This should check a) if publishing without valid authentication fails and b) if HTTP error codes and messages are successfully received and shown by cargo.

Related:

• 503 on publishing a crate #10098

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 32 lines in your changes missing coverage. Please review.

Project coverage is 89.45%. Comparing base (dbdd2cd) to head (cfd4e9b).
Report is 3 commits behind head on main.

Files with missing lines	Patch %	Lines
crates/crates_io_smoke_test/src/cargo.rs	0.00%	17 Missing ⚠️
crates/crates_io_smoke_test/src/main.rs	0.00%	15 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #10104      +/-   ##
==========================================
- Coverage   89.54%   89.45%   -0.10%     
==========================================
  Files         294      294              
  Lines       31224    31256      +32     
==========================================
  Hits        27959    27959              
- Misses       3265     3297      +32     

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