This is a release that adds some improvements to the logic for updating PATH and rcfiles in installers.

Fixes

• @gankra don't corrupt rcfiles that are missing a trailing newline
• @mistydemeo when invoking shell installer from updater, append /bin and use HOME vars more precisely
• @mistydemeo as above, but for powershell
• @mistydemeo use target-specific keys to fix swatinem rust cache