Prepare release v344 (#1703)

Co-authored-by: heroku-linguist[bot] <136119646+heroku-linguist[bot]@users.noreply.github.com>

Author: heroku-linguist[bot]

CHANGELOG.md

@@ -3,6 +3,11 @@
 ## [Unreleased]
 
 
+## [v344] - 2026-01-14
+
+- Ruby 3.2.10 is now available
+
+
 ## [v343] - 2026-01-13
 
 - Ruby 4.0.1 is now available
@@ -1882,7 +1887,8 @@ Bugfixes:
 * Change gem detection to use lockfile parser
 * use `$RACK_ENV` when thin is detected for rack apps
 
-[unreleased]: https://github.com/heroku/heroku-buildpack-ruby/compare/v343...main
+[unreleased]: https://github.com/heroku/heroku-buildpack-ruby/compare/v344...main
+[v344]: https://github.com/heroku/heroku-buildpack-ruby/compare/v343...v344
 [v343]: https://github.com/heroku/heroku-buildpack-ruby/compare/v342...v343
 [v342]: https://github.com/heroku/heroku-buildpack-ruby/compare/v341...v342
 [v341]: https://github.com/heroku/heroku-buildpack-ruby/compare/v340...v341