Update Node version to 24.x LTS (heroku#1704)

* Update Node version to 24.x LTS

Node 24 [has been LTS since October 2025](https://nodejs.org/en/blog/release/v24.11.0)

Signed-off-by: Stefan Wrobel <swrobel@users.noreply.github.com>

* Changelog

* Apply suggestions from code review

Co-authored-by: Stefan Wrobel <swrobel@users.noreply.github.com>
Signed-off-by: Richard Schneeman <richard.schneeman+no-recruiters@gmail.com>

---------

Signed-off-by: Stefan Wrobel <swrobel@users.noreply.github.com>
Signed-off-by: Richard Schneeman <richard.schneeman+no-recruiters@gmail.com>
Co-authored-by: Stefan Wrobel <swrobel@users.noreply.github.com>

Author: schneems

CHANGELOG.md

@@ -2,6 +2,7 @@
 
 ## [Unreleased]
 
+- Default Node.js version now 24.13.0 (https://github.com/heroku/heroku-buildpack-ruby/pull/1704)
 
 ## [v344] - 2026-01-14
 

changelogs/unreleased/node-lts-24.md

@@ -0,0 +1,7 @@
+## Ruby apps now default to Node version 24.13.0
+
+Applications using the `heroku/ruby` buildpack that do not have a version of Node installed by another buildpack (such as the `heroku/nodejs` buildpack) will now receive:
+
+- Node version 24.13.0
+
+These versions and instructions on how to specify a specific version of these binaries can be found on the [installed binaries section of the Heroku Ruby Support page](https://devcenter.heroku.com/articles/ruby-support#installed-binaries).

lib/language_pack/helpers/nodebin.rb

@@ -1,7 +1,7 @@
 require 'json'
 
 class LanguagePack::Helpers::Nodebin
-  NODE_VERSION = "22.11.0"
+  NODE_VERSION = "24.13.0"
   YARN_VERSION = "1.22.22"
 
   def self.hardcoded_node_lts(arch: )