use-test-tables for testing flags #2750

Job	Run time
prepare-test	2m 52s
buildkit-edge	2m 12s
prepare-binaries	6s
binaries (darwin/amd64)	2m 57s
binaries (darwin/arm64)	2m 13s
binaries (linux/amd64)	2m 4s
binaries (linux/arm/v6)	2m 34s
binaries (linux/arm/v7)	2m 34s
binaries (linux/arm64)	2m 37s
binaries (linux/ppc64le)	2m 7s
binaries (linux/riscv64)	2m 14s
binaries (linux/s390x)	2m 43s
binaries (windows/amd64)	2m 38s
binaries (windows/arm64)	2m 2s
test (docker, ./tests)	3m 59s
test (docker\+containerd, ./tests)	4m 2s
test (docker-container, ./tests)	4m 41s
test (remote, ./tests)	3m 37s
test (./..., 1)	4m 41s
release	23s
bin-image	0s
	53m 16s

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