Elminate implicit `cd` #308

Job	Run time
Check relative links in website	16s
Run benchmarks	1m 13s
Run checks	42s
Upload SourceGraph LSIF	0s
Run tests (ubuntu, false, 1.21.x)	1m 37s
Run tests (macos, false, 1.21.x)	2m 37s
Run tests (windows, false, 1.21.x)	4m 11s
Run tests (ubuntu, true, 1.20.x)	54s
Upload test coverage (linux)	6s
Upload test coverage (macos)	11s
Upload test coverage (windows)	7s
	11m 54s

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