FD3-774 agregamos mysql.host.env al docker de supervisord.

tools/src/Release.php

@@ -755,7 +755,8 @@ class Release extends Command
             ->addEnv_file("running.env")
             ->addEnv_file($host_env_file)
             ->addEnv_file("stats.host.env")
-            ->addEnv_file("stats.oauth.env");
+            ->addEnv_file("stats.oauth.env")
+            ->addEnv_file("mysql.host.env");
     }
 
     function addMySql(FileFormat2 $composer, $config = array())