fix paths to scripts #43

Job	Run time
Homebrew packaging unit tests	7m 11s
C++ unit tests on ubuntu-latest, as root	6m 33s
Apache 2 integration tests on macos-latest	3m 47s
C++ unit tests on macos-latest, as normal-user	4m 44s
Nginx dynamic module integration tests on macos-latest	3m 48s
C++ unit tests on ubuntu-latest, as normal-user	6m 43s
Nginx integration tests on macos-latest	3m 5s
Node.js unit tests on macos-latest	43s
Standalone integration tests on macos-latest	4m 9s
Node.js unit tests on ubuntu-latest	49s
Source packaging unit tests	1m 0s
Apache 2 integration tests on ubuntu-latest	5m 1s
Ruby unit tests on macos-latest	3m 42s
Ruby unit tests on ubuntu-latest	3m 25s
Nginx dynamic module integration tests on ubuntu-latest	4m 41s
Nginx integration tests on ubuntu-latest	4m 35s
Standalone integration tests on ubuntu-latest	5m 26s
	1h 9m 22s

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