Fixed a compilation issue with ESPHome 2021.9.0 (currently in beta).

CHANGELOG.md

@@ -4,6 +4,13 @@ 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/spec/v2.0.0.html).
 
+## [2021.9.0]
+
+**Note**: This release requires ESPHome 2021.8.0 and Home Assistant 2021.8.0 or newer.
+
+### Changed
+- Fixed a compilation issue with ESPHome 2021.9.0. 
+
 ## [2021.8.1]
 
 **Note**: This release requires ESPHome 2021.8.0 and Home Assistant 2021.8.0 or newer.