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test: add goroot runner and xfail matrix #5029

Job	Run time
local_install_full (ubuntu-latest)	1m 13s
remote_install (macos-latest)	3m 10s
local_install (ubuntu-latest)	1m 1s
local_install_full (macos-latest)	2m 25s
local_install (macos-latest)	1m 22s
remote_install (ubuntu-latest)	1m 32s
	10m 43s

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