feat: enable GPG signature verification for mise installs#365

iloveitaly wants to merge 2 commits intorailwayapp:mainrailwayapp/railpack:mainfrom

iloveitaly:claude/enable-mise-gpg-verify-01Xayb4MHHnUcmtJThEqB4Nwiloveitaly/railpack:claude/enable-mise-gpg-verify-01Xayb4MHHnUcmtJThEqB4NwCopy head branch name to clipboard