Fix slow execution on Node 20 and add JRuby 9.3.13.0 & 9.4.5.0

What's Changed

• Add jruby-9.3.13.0,jruby-9.4.5.0 by @ruby-builder-bot in #545
• Explicitly exit after this action runs to not wait for hanging promises by @eregon in #546

Full Changelog: v1.159.0...v1.160.0