test_cli fails when the script is installed in different location than sys.executable

[hroncok]

Hello.

If for example my sys.executable is /usr/bin/python3 but I install trove-classifiers to my ~/.local/bin/ (with pip install --user), the tests fail in

trove-classifiers/tests/test_cli.py

Line 19 in b67299d

subprocess.check_call(f"{BINDIR}/trove-classifiers")

trove-classifiers/tests/test_cli.py

Line 30 in b67299d

f"{BINDIR}/trove-classifiers", capture_output=True, encoding="utf-8"

The simplest solution for me was to get rid of the {BINDIR}/ part. Is it necessary?