Prepare release v299 (heroku#1575)

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

Author: heroku-linguist[bot]

CHANGELOG.md

@@ -3,6 +3,9 @@
 ## [Unreleased]
 
 
+## [v299] - 2025-04-07
+
+
 ## [v298] - 2025-04-03
 
 - Added observability metrics (https://github.com/heroku/heroku-buildpack-ruby/pull/1569)
@@ -1659,7 +1662,8 @@ 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/v298...main
+[unreleased]: https://github.com/heroku/heroku-buildpack-ruby/compare/v299...main
+[v299]: https://github.com/heroku/heroku-buildpack-ruby/compare/v298...v299
 [v298]: https://github.com/heroku/heroku-buildpack-ruby/compare/v297...v298
 [v297]: https://github.com/heroku/heroku-buildpack-ruby/compare/v296...v297
 [v296]: https://github.com/heroku/heroku-buildpack-ruby/compare/v295...v296

lib/language_pack/version.rb

@@ -2,6 +2,6 @@
 
 module LanguagePack
   class LanguagePack::Base
-    BUILDPACK_VERSION = "v298"
+    BUILDPACK_VERSION = "v299"
   end
 end