Add network cleanup post update

Signed-off-by: Riddhesh Sanghvi <[email protected]>

Author: mrrobot47

php/EE/Migration/Containers.php

@@ -108,7 +108,7 @@ public static function save_upgraded_image_versions( $current_versions, $new_ver
 
 		self::$rsp->add_step(
 			'prune-old-docker-images',
-			'EE\Migration\Containers::image_cleanup',
+			'EE\Migration\Containers::docker_cleanup',
 			null,
 			null,
 			null
@@ -119,8 +119,9 @@ public static function save_upgraded_image_versions( $current_versions, $new_ver
 	/**
 	 * Prune old and extra EE Docker images.
 	 */
-	public static function image_cleanup() {
+	public static function docker_cleanup() {
 		EE::exec( 'docker image prune -af --filter=label=org.label-schema.vendor="EasyEngine"' );
+		EE::exec( 'docker network prune -f --filter=label=org.label-schema.vendor="EasyEngine"' );
 	}
 
 	/**