Describe the bug
Pipx install does not honour --index-url when it updates pip/setuptools/wheel.

I am calling pipx install with an --index-url <replace_with_artifactory _url> and --pip-args "--index-url <replace_with_artifactory _url>" which correctly installs the given package using the correct index url.

However when I use pipx install with --verbose I can see that underneath the hood there is a call to the following, which does not pass through the --index-url:
python -m pip --disable-pip-version-check install --force-reinstall --upgrade pip setuptools wheel

Are there any config settings that I can fix this with OR can I stop the reinstall of the pip/setuptools/wheel call please?

How to reproduce
Run:
pipx install <whatever_package> --index-url <host_of_artifact_url>

Expected behavior
Should see that it uses the passed in --index-url:
python -m pip --disable-pip-version-check install --index-url <host_of_artifact_url> --force-reinstall --upgrade pip setuptools wheel