[ruby-core:122884] [Ruby Bug#21523] Backport Oniguruma patches to stable branches

Issue #21523 has been reported by hsbt (Hiroshi SHIBATA). ---------------------------------------- Bug #21523: Backport Oniguruma patches to stable branches https://bugs.ruby-lang.org/issues/21523 * Author: hsbt (Hiroshi SHIBATA) * Status: Closed * Backport: 3.2: REQUIRED, 3.3: REQUIRED, 3.4: REQUIRED ---------------------------------------- https://github.com/ruby/ruby/pull/14027 -- https://bugs.ruby-lang.org/