Update PHP documentation chain software

References:

• https://github.com/plantuml/plantuml/releases
• https://github.com/phpDocumentor/phpDocumentor/releases/
• https://github.com/code-lts/doctum/releases/

Test Plan: make with Keruald D2810 branch

Reviewed By: yousra

Differential Revision: https://devcentral.nasqueron.org/D4069