Prevent MySQL LOAD DATA statements

Summary:
This setting is recommended for Phabricator installations,

Reference: https://www.php.net/manual/en/mysqli.configuration.php

Reference: https://secure.phabricator.com/rP98bf3a950dcfafe8d9f4485fc6fa2bb394924841

Test Plan: Tested here for DevCentral

Reviewers: dereckson

Reviewed By: dereckson

Subscribers: Nasqueron Docker deployment squad

Tags: Docker images

Differential Revision: https://devcentral.nasqueron.org/D2101