Tests

Add target_toolchain_roots and make sysroot more hermetic #1204

Job	Run time
test (macos-latest, 7.x, true)	34s
abs_paths_test (true)	30s
sys_paths_test (true)	1m 12s
test (macos-latest, 7.x, false)	1m 16s
abs_paths_test (false)	1m 15s
sys_paths_test (false)	1m 23s
test (macos-latest, latest, true)	30s
container_test (archlinux, true)	26s
test (macos-latest, latest, false)	29s
container_test (archlinux, false)	25s
lint	14s
container_test (debian, true)	32s
external_test (macos-13, latest, true)	1m 7s
test (ubuntu-latest, 7.x, true)	14s
container_test (debian, false)	27s
external_test (macos-13, latest, false)	1m 0s
test (ubuntu-latest, 7.x, false)	1m 14s
container_test (fedora, true)	27s
external_test (ubuntu-latest, latest, true)	19s
test (ubuntu-latest, latest, true)	17s
container_test (fedora, false)	26s
external_test (ubuntu-latest, latest, false)	18s
test (ubuntu-latest, latest, false)	17s
container_test (suse_leap, true)	43s
container_test (suse_leap, false)	42s
container_test (suse_tumbleweed, true)	39s
xcompile_test (true)	1s
container_test (suse_tumbleweed, false)	38s
xcompile_test (false)	27s
container_test (ubuntu_20_04, true)	20s
container_test (ubuntu_20_04, false)	21s
container_test (ubuntu_22_04, true)	17s
container_test (ubuntu_22_04, false)	18s
container_test (linux_sysroot, true)	25s
container_test (linux_sysroot, false)	35s
	20m 18s

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