location_tests may take an excessive amount of time

[ScottBailey]

When network connectivity becomes iffy, the following test (in tests/location_test.cpp) takes over 6 minutes: CHECK(location::clone_github_repo("antelopeio", "antler-proj", "main", 10, "./clone_test/foo2"));

As development on the project continues the amount of data will increase causing this test to take longer.

It would be better to create a new repo for testing so less data needs to be downloaded.

[stephenpdeos]

Results with a 5-10 megabit connection ^

[stephenpdeos]

Add comment in test source to inform this will be a long-running test