don’t use path_helper to munge path in GHA #22

Job	Run time
Homebrew packaging unit tests	7m 41s
Node.js unit tests on macos-latest	1m 11s
C++ unit tests on macos-latest, as root	21m 45s
Node.js unit tests on ubuntu-latest	41s
C++ unit tests on ubuntu-latest, as root	6m 39s
Source packaging unit tests	1m 4s
Ruby unit tests on macos-latest	2m 15s
Apache 2 integration tests on macos-latest	3m 26s
C++ unit tests on macos-latest, as normal-user	3m 54s
Ruby unit tests on ubuntu-latest	3m 23s
Nginx dynamic module integration tests on macos-latest	2m 46s
C++ unit tests on ubuntu-latest, as normal-user	6m 29s
Nginx integration tests on macos-latest	3m 45s
Standalone integration tests on macos-latest	3m 40s
Apache 2 integration tests on ubuntu-latest	4m 46s
Nginx dynamic module integration tests on ubuntu-latest	8m 48s
Nginx integration tests on ubuntu-latest	4m 25s
Standalone integration tests on ubuntu-latest	5m 31s
	1h 32m 9s

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