feat: Add initramfs generation #100

Job	Run time
build / image (main, bluefin, 39)	5m 24s
build / image (main, bluefin-dx, 39)	5m 58s
build / image (nvidia, bluefin, 39)	5m 10s
build / image (nvidia, bluefin-dx, 39)	5m 57s
build / image (asus, bluefin, 39)	7m 19s
build / image (asus, bluefin-dx, 39)	11m 0s
build / image (asus-nvidia, bluefin, 39)	6m 35s
build / image (asus-nvidia, bluefin-dx, 39)	9m 49s
build / image (framework, bluefin, 39)	4m 42s
build / image (framework, bluefin-dx, 39)	6m 43s
build / image (surface, bluefin, 39)	7m 2s
build / image (surface, bluefin-dx, 39)	9m 7s
build / image (surface-nvidia, bluefin, 39)	6m 19s
build / image (surface-nvidia, bluefin-dx, 39)	8m 54s
build / Check all bluefin 39 builds successful	1s
build / iso	0s
	1h 40m 0s

Provide feedback