5.4 build 1722.1 - Backported critical security vulnerability fix to build 1722

This build contains a fix to a critical SQL Injection vulnerability, as well as fixes to minor security vulnerabilities.

Refer to release https://github.com/plan-player-analytics/Plan/releases/tag/5.5.2172 for further details, and prefer newest version whenever possible if installing new versions. 5.4 is not actively maintained and the backport was created since 15% of servers still use build 1722.