dev-ruby/json-schema: allow bigdecimal-4

Closes: https://bugs.gentoo.org/976106
Signed-off-by: Sam James <sam@gentoo.org>

dev-ruby/json-schema/files/json-schema-5.2.2-allow-bigdecimal-4.patch

@@ -0,0 +1,24 @@
+https://bugs.gentoo.org/976106
+https://github.com/voxpupuli/json-schema/pull/557
+
+From 9f52b34a54a9063aace89edeb3caf1e96acee851 Mon Sep 17 00:00:00 2001
+From: Tim Meusel <tim@bastelfreak.de>
+Date: Sat, 20 Dec 2025 22:07:49 +0100
+Subject: [PATCH] bigdecimal: Allow 4.x
+
+---
+ json-schema.gemspec | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/json-schema.gemspec b/json-schema.gemspec
+index 36acd2aa..fde94b6f 100644
+--- a/json-schema.gemspec
++++ b/json-schema.gemspec
+@@ -23,5 +23,5 @@ Gem::Specification.new do |s|
+   s.add_development_dependency 'webmock', '~> 3.23'
+ 
+   s.add_dependency 'addressable', '~> 2.8'
+-  s.add_dependency 'bigdecimal', '~> 3.1'
++  s.add_dependency 'bigdecimal', '>= 3.1', '< 5'
+ end
+

dev-ruby/json-schema/json-schema-5.2.2-r1.ebuild

@@ -32,6 +32,7 @@ ruby_add_bdepend "test? (
 
 PATCHES=(
 	"${FILESDIR}/${P}-remove-dev-tasks.patch"
+	"${FILESDIR}/${P}-allow-bigdecimal-4.patch"
 )
 
 all_ruby_prepare() {