patch 8.2.3922: cannot build with dynamic Ruby 3.1 Commit: https://github.com/vim/vim/commit/8bb3fe4d4dcd27c02e903f6772fdc8fe2e9eba70 Author: ichizok <gclient.gaap@gmail.com> Date: Tue Dec 28 15:51:45 2021 +0000 patch 8.2.3922: cannot build with dynamic Ruby 3.1 Problem: Cannot build with dynamic Ruby 3.1. Solution: Add "_EXTRA" variables for CI. Add missing functions. (Ozaki Kiichi, closes #9420)