Set homebrew bottle domain to fix Bintray's DNS mess

src/scripts/darwin.sh

@@ -187,6 +187,7 @@ brew_prefix="$(brew --prefix)"
 brew_repo="$(brew --repository)"
 tap_dir="$brew_repo"/Library/Taps
 scripts="${dist}"/../src/scripts
+export HOMEBREW_BOTTLE_DOMAIN="https://dl.bintray.com/homebrew"
 export HOMEBREW_CHANGE_ARCH_TO_ARM=1
 export HOMEBREW_NO_INSTALL_CLEANUP=1
 export HOMEBREW_NO_AUTO_UPDATE=1