revert back the changelog

Author: Harold James Quilang

CHANGELOG.md

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+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/).
+
+## [2.13.4] - 2024-09-19
+
+### Added
+
+- Added `file_ids` support in the deployment invocation
+
+## [2.13.3] - 2024-09-19
+
+### Fixed
+
+- Missing invoke_options parameter
+
+## [2.13.2] - 2024-09-17
+
+### Added
+
+- Now is possible to request the retrieval to be returned in the response of the deployment creation
+
+## [2.13.1] - 2024-09-17
+
+### Fixed
+
+- Incorrect URL for the async methods of the Deployments API
+
+## [2.13.0] - 2024-08-03
+
+### Added
+
+- Added support for webhooks signature verification
+- Added support for the `contacts` API
+
+## [2.12.0] - 2024-07-09
+
+### Added
+
+- Added support for `prefix_messages` in deployments
+
+## [2.11.0] - 2024-06-30
+
+### Added
+
+- Added support for the Feedback API
+- Introduce the `BASE_URL` environment variable to prepare the SDK for on premise deployments
+
+### Changed
+
+- Centralize the `api_key` in the `Store` object to reuse it in all the API calls
+
+## [2.3.6] - 2024-05-10
+
+### Added
+
+- When `environments` property is set on the `context` the global `environment` value is overwriten.