allow duration based filters on diskusage requests #5226

Job	Run time
build (windows/amd64)	1m 41s
build (freebsd/amd64)	1m 36s
test-freebsd-amd64	2m 29s
test-windows-amd64 (containerd, ./client)	4m 1s
test-windows-amd64 (containerd, ./cmd/buildctl)	2m 36s
test-windows-amd64 (containerd, ./worker/containerd)	2m 57s
test-windows-amd64 (containerd, ./solver)	2m 39s
test-windows-amd64 (containerd, ./frontend)	3m 1s
test-windows-amd64 (containerd, ./frontend/dockerfile)	38m 9s
test-windows-amd64 (./..., 1)	12m 5s
	1h 11m 14s

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