Fix PinePhone CI testing (GNOME-43)
This MR removes deals with updating and fixing the CI tests for the PinePhone on the GNOME-43 branch. We address issues raised in a previously merged MR
- We remove the unneeded IMAGE variable
- We remove marking the script executable
- We generate a template for the CI tests (applied to PinePhone only & to be applied to the PinePhone Pro in a later MR)
Backport of !1916 (merged)
Fixes #603 (closed)
Note: This MR is concerned with the PinePhone only
Edited by Tanvir Roshid