Tests

Add options for the Julia binary and project path #969

Job	Run time
Test Julia (1, windows-latest, @CondaPkg)	3m 39s
Test Julia (1.9, windows-latest, @CondaPkg)	3m 37s
Test Julia (1.9, ubuntu-latest, @CondaPkg)	2m 11s
Test Python (3, windows-latest, @JuliaPkg)	2m 58s
Test Julia (1, macos-latest, @CondaPkg)	3m 50s
Test Python (3, ubuntu-latest, @JuliaPkg)	2m 17s
Test Python (3.9, ubuntu-latest, @JuliaPkg)	1m 57s
Test Python (3.9, macos-latest, @JuliaPkg)	2m 11s
Test Python (3, macos-latest, @JuliaPkg)	1m 24s
Test Julia (1.9, macos-latest, @CondaPkg)	3m 3s
Test Julia (1, ubuntu-latest, python)	2m 20s
Test Python (3.9, windows-latest, @JuliaPkg)	3m 46s
Test Python (3, ubuntu-latest, manual)	22s
Test Julia (1, ubuntu-latest, @CondaPkg)	2m 39s
	36m 14s

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