Added way to configure SBOM scanner #4966

Job	Run time
build (windows/amd64)	1m 46s
build (freebsd/amd64)	1m 39s
test-freebsd-amd64	2m 46s
test-windows-amd64 (containerd, ./client)	4m 27s
test-windows-amd64 (containerd, ./cmd/buildctl)	2m 20s
test-windows-amd64 (containerd, ./worker/containerd)	2m 38s
test-windows-amd64 (containerd, ./solver)	1m 53s
test-windows-amd64 (containerd, ./frontend)	2m 20s
test-windows-amd64 (containerd, ./frontend/dockerfile)	25m 54s
test-windows-amd64 (./..., 1)	6m 33s
	52m 16s

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