libtorrent: pull bottles

Since this are C++, and don't build with clang, the bots are pulling
in the GCC formula. They then link against that GCC's libstdc++, and
will not run for users who don't have GCC installed.
alpine 2.11

Merges Alpine-chappa into Alpine, following Debian & Ubuntu’s lead,
adds my patch for the Yosemite build failure.

Closes #33634.
alpine: update 2.11 bottle.