linux

Fix error identifying cobalt_toolchain (#4582) #17257

Job	Run time
chromium_linux-x64 / initialize	1m 16s
linux / initialize	1m 28s
linux-evergreen / initialize	1m 17s
chromium_linux-x64 / docker-build-image	3m 55s
linux-evergreen / docker-build-image	3m 59s
linux / docker-build-image	4m 56s
chromium_linux-x64 / x64_devel	23m 17s
chromium_linux-x64 / x64_debug	24m 32s
chromium_linux-x64 / x64_qa	31m 25s
chromium_linux-x64 / x64_gold	30m 10s
linux-evergreen / x64_devel	6m 52s
linux-evergreen / x64_debug	7m 14s
linux-evergreen / x64_qa	7m 41s
linux-evergreen / x64_gold	7m 44s
linux / x64_devel	25m 21s
linux / x64_debug	25m 36s
linux / x64_qa	28m 58s
linux / x64_gold	29m 35s
linux-evergreen / ${{ matrix.name }}_tests	0s
linux / x64_tests	5m 56s
chromium_linux-x64 / ${{ matrix.name }}_tests	0s
	4h 31m 12s

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