Test

action.yaml: fix working directory for running tests. #133

Job	Run time
C++ tests (msvc/Windows/x64) (Debug)	2m 24s
C++ tests (clang/macos/ARM64) (Debug)	2m 8s
C++ tests (gcc-clang/Linux/x64) (Debug, clang)	1m 8s
C++ tests (gcc/Linux/ARM64) (Debug)	1m 15s
C++ tests (clang/macos/ARM64) (Release)	2m 11s
C++ tests (gcc-clang/Linux/x64) (Debug, gcc)	1h 9m 56s
C++ tests (clang/MacOS/x64) (Debug)	3m 35s
C++ tests (gcc/Linux/ARM64) (Release)	5m 59s
C++ tests (gcc-clang/Linux/x64) (Release, clang)	1m 28s
C++ tests (clang/MacOS/x64) (Release)	3m 3s
C++ tests (gcc-clang/Linux/x64) (Release, gcc)	28m 53s
Report status	1s
	2h 2m 1s

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