fix typo in "server"
fix typo in "server"

A mere typo fix
symfony/symfony-standard,debruyne0/symfony,stof/symfony-standard,kmelia/fresh-symfony,Tobion/symfony-standard,kmelia/fresh-symfony,kmelia/fresh-symfony,debruyne0/symfony,symfony/symfony-standard,stof/symfony-standard,Tobion/symfony-standard,simonjcarr/symfony_rest,simonjcarr/symfony_rest