Update Procfile

* Adds redis-server
* Removes bibsched
Okay, so I will remove it. I thought that we need it here, as it is present in the [invenio/Procfile](https://github.com/inveniosoftware/invenio/blob/pu/Procfile).
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Would it be enough if I remove bibsched start from here and add it at the end of the provisioning script?