Bump changelog for v6.24.0

CHANGELOG.md

@@ -4,6 +4,36 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
+## [v6.24.0](https://github.com/buildkite/elastic-ci-stack-for-aws/tree/v6.24.0) (2024-08-21)
+[Full Changelog](https://github.com/buildkite/elastic-ci-stack-for-aws/compare/v6.23.0...v6.24.0)
+
+### Changed
+- docs: update RootVolumeIops to include gp3 [#1359](https://github.com/buildkite/elastic-ci-stack-for-aws/pull/1359) (@joemiller)
+- Bump agent to v3.78.0 [#1360](https://github.com/buildkite/elastic-ci-stack-for-aws/pull/1360) (@CerealBoy)
+
+### Internal
+- Dependabot updates: [#1358](https://github.com/buildkite/elastic-ci-stack-for-aws/pull/1358) (@dependabot[bot])
+
+<details>
+<summary>Agent Changelog</summary>
+
+## [v3.78.0](https://github.com/buildkite/agent/tree/v3.78.0) (2024-08-20)
+[Full Changelog](https://github.com/buildkite/agent/compare/v3.77.0...v3.78.0)
+
+### Fixed
+- fix for layout issues with log messages [#2933](https://github.com/buildkite/agent/pull/2933) (@wolfeidau)
+- Prevent Cancel from running when a k8s job is cancelled already [#2935](https://github.com/buildkite/agent/pull/2935) (@CerealBoy)
+- k8s: Unconditionally set `BUILDKITE_AGENT_ACCESS_TOKEN` [#2942](https://github.com/buildkite/agent/pull/2942) (@DrJosh9000)
+
+### Changed
+- Add a bit more context to the debugging for failing signature verify [#2926](https://github.com/buildkite/agent/pull/2926) (@wolfeidau)
+- Update description for the 'priority' option for the 'buildkite-agent annotate' command. [#2934](https://github.com/buildkite/agent/pull/2934) (@gilesgas)
+
+### Internal
+Dependabot churn: [#2927](https://github.com/buildkite/agent/pull/2927), [#2928](https://github.com/buildkite/agent/pull/2928), [#2929](https://github.com/buildkite/agent/pull/2929), [#2930](https://github.com/buildkite/agent/pull/2930), [#2931](https://github.com/buildkite/agent/pull/2931), [#2937](https://github.com/buildkite/agent/pull/2937), [#2939](https://github.com/buildkite/agent/pull/2939), [#2940](https://github.com/buildkite/agent/pull/2940), [#2943](https://github.com/buildkite/agent/pull/2943) (@dependabot[bot])
+
+</details>
+
 ## [v6.23.0](https://github.com/buildkite/elastic-ci-stack-for-aws/tree/v6.23.0) (2024-08-09)
 [Full Changelog](https://github.com/buildkite/elastic-ci-stack-for-aws/compare/v6.22.4...v6.23.0)