[ruby/stringio] Development of 3.1.1 started.

https://github.com/ruby/stringio/commit/75da93d48f
2023-11-28 10:38:15 +09:00 · 2023-11-28 10:38:15 +09:00 · def416899d
--- a/ext/stringio/stringio.c
+++ b/ext/stringio/stringio.c
@ -13,7 +13,7 @@
 **********************************************************************/

 static const char *const
-STRINGIO_VERSION = "3.1.0";
+STRINGIO_VERSION = "3.1.1";

 #include "ruby.h"
 #include "ruby/io.h"