Bump to 4.0.4 and changelog.md file change (apigee#468)

Author: shailesh-google

CHANGELOG.md

@@ -1,4 +1,7 @@
 # CHANGELOG
+## [4.0.4](https://github.com/apigee/apigee-client-php/milestone/40?closed=1)
+* [#467] Fix: Ignore 'originalEmail' when creating developer entities.
+
 ## [4.0.3](https://github.com/apigee/apigee-client-php/milestone/39?closed=1)
 * [#457] Upgrade Symfony dependencies to v7.3.
 * [#455] support new firebase/php-jwt ^7.0 version.

src/ClientInterface.php

@@ -63,7 +63,7 @@ interface ClientInterface extends HttpClient
      */
     public const APIGEE_ON_GCP_ENDPOINT = 'https://apigee.googleapis.com/v1';
 
-    public const VERSION = '4.0.3';
+    public const VERSION = '4.0.4';
 
     /**
      * Allows access to the last request, response and exception.