pipenv 2023.6.18

Release v2023.6.18

on Python PyPI

What's Changed

• Improve keyring docs. by @matteius in #5733
• Only search the Pipenv default index when an alternative index is not specified (and deprecate --skip-lock). by @matteius in #5737

Full Changelog: v2023.6.12...v2023.6.18