Added 3.1.0-preview1

Add JRuby 9.2.20.0

Remove yjit-dev

YJIT has been merged with upstream CRuby and the repo used by ruby-build is no longer maintained properly.

Add JRuby 9.3.1.0

We continue to maintain the S3 URLs but only as a courtesy for
legacy apps and tools. The preferred URLs are the maven jruby-dist
links, which have the same files but are federated and mirrored
across the maven ecosystem.

* Fixes https://github.com/rbenv/ruby-build/issues/1798
* OpenJDK 17 reports:
  $ java -version
  openjdk version "17" 2021-09-14
  There is no dot in the version, so we need to only use the first match from grep -o.
* Clarify it is a minimum required java version, not an exact version.

Add a definition for yjit-dev

Use openssl-1.1.1l

* Fixes #1786

https://github.com/aws/aws-cli/issues/5234#issuecomment-705831465

* Only do clean_prefix_path for TruffleRuby and rename for clarity,
  since the logic is now TruffleRuby-specific.

Refresh download mirror in GitHub Actions on push