Clean up non PEP 440 wheel filename deprecation language

[notatallshaw]

This PR does the following

1. Removes catching InvalidVersion as I found out more recent versions of packaging (which are now vendored) no longer raise this for parse_wheel_filename: parse_{sdist,wheel}_filename: don't raise InvalidVersion packaging#721
2. Cleaned up langauge based on @ichard26 suggestions and added an extra test based on the filename example

This is the new warning:

DEPRECATION: Wheel filename 'simple-0.1_1-py2-none-any.whl' is not correctly normalised. Future versions of pip will raise the following error:
  Invalid wheel filename (invalid version): simple-0.1_1-py2-none-any
  
   pip 25.1 will enforce this behaviour change. A possible replacement is to rename the wheel to use a correctly normalised name (this may require updating the version in the project metadata). Discussion can be found at https://github.com/pypa/pip/issues/12938

[sbidoul]

Thanks @notatallshaw !