ruby: set ruby path to opt_bin

Fixes #34368.
Closes #35232.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
ruby: write operating_system.rb in post_install
luabridge 2.0 (new formula)

LuaBridge is a lightweight library for mapping between C++ and Lua
document the patch
a stable download add revision number
luabridge: add 2.0 bottle.