ruby: upgrade 3.4.2 -> 3.4.3

ruby: upgrade 3.4.2 -> 3.4.3

This includes CVE-fix for CVE-2025-27219, CVE-2025-27220 and
CVE-2025-27221

Changes between 3.4.2 -> 3.4.3
==============================
https://github.com/ruby/ruby/compare/v3_4_2...v3_4_3

Signed-off-by: Divya Chellam <divya.chellam@windriver.com>
Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
(cherry picked from commit d739c52558af986c2ce4c65e1197e8d524d14d22)
Signed-off-by: Steve Sakoman <steve@sakoman.com>