swap keychain path to variable #31

Job	Run time
Homebrew packaging unit tests	6m 47s
Node.js unit tests on macos-latest	1m 4s
C++ unit tests on macos-latest, as root	13m 10s
Node.js unit tests on ubuntu-latest	44s
C++ unit tests on ubuntu-latest, as root	8m 25s
Ruby unit tests on macos-latest	1m 44s
Source packaging unit tests	1m 29s
C++ unit tests on macos-latest, as normal-user	4m 45s
Ruby unit tests on ubuntu-latest	3m 38s
C++ unit tests on ubuntu-latest, as normal-user	6m 38s
Apache 2 integration tests on macos-latest	3m 39s
Nginx dynamic module integration tests on macos-latest	2m 47s
Nginx integration tests on macos-latest	3m 37s
Standalone integration tests on macos-latest	4m 44s
Apache 2 integration tests on ubuntu-latest	4m 50s
Nginx dynamic module integration tests on ubuntu-latest	4m 38s
Nginx integration tests on ubuntu-latest	4m 22s
Standalone integration tests on ubuntu-latest	8m 26s
	1h 25m 27s

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