0.9.1 released

[postmodern]

0.9.1 / 2023-06-23

• --debug will now show the wget or curl command when downloading
  ruby version information.
• Prefer curl over wget when on macOS, otherwise prefer wget over curl.
• Fixed an implicit string splitting bug when passing in compiler env variables
  via the additional configuration options
  (ex: ruby-install ruby -- CFLAGS="-O3 ...").
• Catch unknown ruby implementation names early before attempting to download
  version information for them.

truffleruby

• Added support for installing TruffleRuby 23.0.0.

truffleruby-graalvm

• Added support for installing TruffleRuby+GraalVM 23.0.0.
  • This uses the new Oracle GraalVM distribution which uses the GFTC license
    as it is significantly faster than GraalVM CE and is free for development
    and production use.