compiler: Strip .image_header section in bin #90

Job	Run time
populate-targets	5s
newt dump (bleprph-nrf52840pdk, ubuntu-latest)	15s
newt dump (bleprph-nrf52840pdk, windows-latest)	1m 1s
newt dump (bleprph-nrf52840pdk, macos-latest)	57s
newt dump (boot-nrf52dk, ubuntu-latest)	18s
newt dump (boot-nrf52dk, windows-latest)	2m 1s
newt dump (boot-nrf52dk, macos-latest)	38s
newt dump (btshell-nrf52840pdk, ubuntu-latest)	16s
newt dump (btshell-nrf52840pdk, windows-latest)	2m 6s
newt dump (btshell-nrf52840pdk, macos-latest)	52s
newt dump (btshell-nrf52dk, ubuntu-latest)	15s
newt dump (btshell-nrf52dk, windows-latest)	1m 12s
newt dump (btshell-nrf52dk, macos-latest)	54s
newt dump (my_blinky_sim, ubuntu-latest)	19s
newt dump (my_blinky_sim, windows-latest)	1m 45s
newt dump (my_blinky_sim, macos-latest)	57s
	13m 51s

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