`gpnf-gflow-restart-workflow-for-child-entry-when-edited.php`: Added snippet to restart workflow for child entry when edited.

[saifsultanc]

trafficstars

Context

⛑️ Ticket(s): https://secure.helpscout.net/conversation/2710141085/71536

Summary

Snippe to restart a GravityFlow Workflow within the child form when the child form entry is edited in a GravityFlow Step.

Demo: https://www.loom.com/share/0df02d719d4546fea88946a7eb3030cb