chore: Add st as an alias to schemathesis

[Stranger6667]

No description provided.

[codecov-commenter]

Codecov Report

Merging #1400 (557d097) into master (7a5a8fe) will decrease coverage by 0.04%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master    #1400      +/-   ##
==========================================
- Coverage   99.15%   99.11%   -0.05%     
==========================================
  Files          83       83              
  Lines        6416     6416              
  Branches     1132     1132              
==========================================
- Hits         6362     6359       -3     
- Misses         27       29       +2     
- Partials       27       28       +1     

Flag	Coverage Δ
unittests	99.09% <100.00%> (-0.04%)	⬇️

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Impacted Files	Coverage Δ
src/schemathesis/cli/__init__.py	99.05% <ø> (ø)
src/schemathesis/cli/cassettes.py	100.00% <100.00%> (ø)
src/schemathesis/cli/callbacks.py	98.33% <0.00%> (-1.67%)	⬇️
src/schemathesis/specs/openapi/loaders.py	98.31% <0.00%> (-0.85%)	⬇️

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