Tests

Add options for the Julia binary and project path #967

Job	Run time
Test Python (3.9, windows-latest, @JuliaPkg)	44s
Test Python (3.9, ubuntu-latest, @JuliaPkg)	15s
Test Julia (1, macos-latest, @CondaPkg)	2m 38s
Test Julia (1.9, windows-latest, @CondaPkg)	3m 47s
Test Julia (1, ubuntu-latest, @CondaPkg)	58s
Test Python (3, macos-latest, @JuliaPkg)	18s
Test Python (3.9, macos-latest, @JuliaPkg)	47s
Test Julia (1.9, macos-latest, @CondaPkg)	2m 11s
Test Python (3, ubuntu-latest, @JuliaPkg)	9s
Test Julia (1, ubuntu-latest, python)	52s
Test Python (3, windows-latest, @JuliaPkg)	49s
Test Julia (1, windows-latest, @CondaPkg)	1m 42s
Test Python (3, ubuntu-latest, manual)	23s
Test Julia (1.9, ubuntu-latest, @CondaPkg)	1m 1s
	16m 34s

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