Bump up required java version to 21 for JRuby 10

hsbt · hsbt · commit 4cdc5a720f54 · 2025-04-15T10:31:19.000+09:00
diff --git a/share/ruby-build/jruby-10.0.0.0 b/share/ruby-build/jruby-10.0.0.0
@@ -1,2 +1,2 @@
-require_java 8
+require_java 21
 install_package "jruby-10.0.0.0" "https://repo1.maven.org/maven2/org/jruby/jruby-dist/10.0.0.0/jruby-dist-10.0.0.0-bin.tar.gz#427d9827ed23fe6b4d11fe61665c75dd7476ba36a0438376eb310ce2a8d24733" jruby

Original file line number	Diff line number	Diff line change
`@@ -1,2 +1,2 @@`
`1`		`-require_java 8`
	`1`	`+require_java 21`
`2`	`2`	`install_package "jruby-10.0.0.0" "https://repo1.maven.org/maven2/org/jruby/jruby-dist/10.0.0.0/jruby-dist-10.0.0.0-bin.tar.gz#427d9827ed23fe6b4d11fe61665c75dd7476ba36a0438376eb310ce2a8d24733" jruby`