Scalabilty: licenseCheck.js housekeeping task should only run on one forge app instance

[hardillb]

Description

This task sends email reminders to Forge Admin users about pending license expiry.

It runs at mid might on Sundays, and should only run on one forge app instance to prevent duplicate emails.

Epic/Story

#6162

Have you provided an initial effort estimate for this issue?

I have provided an initial effort estimate