Add locks to changelog (esphome#1916)

Author: jesserockz

changelog/2022.2.0.rst

@@ -60,6 +60,10 @@ And then install the latest ESPHome addon here:
              alt="Open your Home Assistant instance and show the dashboard of a Supervisor add-on." />
     </a>
 
+Locks
+-----
+
+Lock Entities have been added to ESPHome. These will be available after Home Assistant 2022.3 is released. Thanks :ghuser:`kbickar`.
 
 ESP8266 recommended framework bump
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