Fixes squashfs images creation #3489

Job	Run time
detect	1s
build-toolkit	1m 18s
build-matrix (green) / detect	1s
build-matrix (green) / build-os	2m 38s
build-matrix (orange) / detect	1s
build-matrix (orange) / build-os	2m 37s
build-matrix (blue) / build-os	2m 49s
build-matrix (blue) / detect	1s
build-matrix (orange) / build-iso	1s
build-matrix (orange) / build-disk	1s
build-matrix (green) / build-disk	1s
build-matrix (green) / build-iso	1s
build-matrix (orange) / test-installer	1s
build-matrix (orange) / tests-matrix	1s
build-matrix (green) / tests-matrix	1s
build-matrix (green) / test-installer	1s
build-matrix (blue) / build-iso	1s
build-matrix (blue) / build-disk	1s
build-matrix (blue) / test-installer	1s
build-matrix (blue) / tests-matrix	1s
	9m 38s

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