Fix --version for python 3.10

[asottile]

found using asottile/python3.10

before

$ .tox/py310/bin/auditwheel --version
auditwheel 2.1.1.dev2 installed at /tmp/x/repos/pypa/auditwheel (python 3.1)

after

$ .tox/py310/bin/auditwheel --version
auditwheel 2.1.1.dev2 installed at /tmp/x/repos/pypa/auditwheel (python 3.10)

[codecov]

Codecov Report

Merging #189 into master will not change coverage.
The diff coverage is 100%.

@@           Coverage Diff           @@
##           master     #189   +/-   ##
=======================================
  Coverage   87.43%   87.43%           
=======================================
  Files          19       19           
  Lines         963      963           
  Branches      210      210           
=======================================
  Hits          842      842           
  Misses         84       84           
  Partials       37       37

Impacted Files	Coverage Δ
auditwheel/main.py	100% <100%> (ø)	⬆️

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