Tests

Update a major tag to point to the latest release #276

Job	Run time
test	10s
test-with-trellis	1m 2s
test-with-trellis-no-galaxy	43s
test-with-trellis-no-auto-init	17s
test-no-repo-token	15s
test-with-trellis-no-cache-virtualenv	51s
	3m 18s

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