python310Packages.reqif: python3 -> python

Co-authored-by: Jonas Heinrich <[e-mail]>
Co-authored-by: Sandro Jäckel <[e-mail]>
Co-authored-by: Martin Weinelt <[e-mail]>

pkgs/development/python-modules/reqif/default.nix

···
 { lib
 , buildPythonPackage
-, python3
+, python
 , pythonOlder
 , fetchFromGitHub
 , poetry-core
···
   postPatch = ''
     substituteInPlace ./tests/unit/conftest.py --replace \
        "os.path.abspath(os.path.join(__file__, \"../../../../reqif\"))" \
-      "\"${placeholder "out"}/${python3.sitePackages}/reqif\""
+      "\"${placeholder "out"}/${python.sitePackages}/reqif\""
     substituteInPlace pyproject.toml --replace "^" ">="
     substituteInPlace requirements.txt --replace "==" ">="
   '';