emulators/i386-wine: switch to using https for downloads

• ftp downloads are no longer provided upstream
• PORTREVISION is not bumped:
  • on amd64 there is no change as the upstream binaries have not been rebuilt; and
  • on i386 the build is IGNOREd by default
  • the next round of binary updates to wine will include this change

PR: 219775
Submitted by: rozhuk.im@gmail.com