Php extended support service

I need a website developer to update the php extended support from 5.6 to 7.3 or latest with my 2 social websites which are not for profit making. Therefore it is not really making any money but for charity intended purpose.
I have the webhosting account with https://www.ionos.co.uk
WordPress storage:
Websites 2:
1. https://christdunamisministries.org
2. creamstonehealthcare.org
Deadline for completion - Monday 18th May 2020