Fix deprecated reference to Player.EventListener in the dev guide

#minor-release

PiperOrigin-RevId: 417961565

docs/retrieving-metadata.md

@@ -6,7 +6,7 @@ title: Retrieving metadata
 
 
 The metadata of the media can be retrieved during playback in multiple ways. The
 The metadata of the media can be retrieved during playback in multiple ways. The
 most straightforward is to listen for the
 most straightforward is to listen for the
-`Player.EventListener#onMediaMetadataChanged` event; this will provide a
+`Player.Listener#onMediaMetadataChanged` event; this will provide a
 [`MediaMetadata`][] object for use, which has fields such as `title` and
 [`MediaMetadata`][] object for use, which has fields such as `title` and
 `albumArtist`. Alternatively, calling `Player#getMediaMetadata` returns the same
 `albumArtist`. Alternatively, calling `Player#getMediaMetadata` returns the same
 object.
 object.