chore(deps): update actions/download-artifact action to v4 #133

Job	Run time
Prepare docker image for Twister	6s
Determine next release version	23s
Prepare docker image	6s
Generate date string	1s
Run Twister tests	8m 1s
Build (thingy91)	3m 5s
Build (thingy91.dbg)	2m 52s
Build (thingy91.lp.mmflt)	2m 51s
Build (thingy91.sol)	2m 43s
Build (thingy91.sol.dbg)	2m 50s
Build (thingy91.sol.lp.mmflt)	3m 7s
Release	0s
	26m 5s

Provide feedback