Tests

Move JET tests to nopre group #307

Job	Run time
Tests (1, Core) / Tests - Core	5m 54s
Tests (lts, Core) / Tests - Core	4m 41s
Tests (lts, Downstream) / Tests - Downstream	8m 3s
Tests (1, Downstream) / Tests - Downstream	17m 37s
Tests (lts, nopre) / Tests - nopre	2m 41s
Tests (pre, Downstream) / Tests - Downstream	9m 11s
Tests (1, nopre) / Tests - nopre	6m 8s
Tests (pre, Core) / Tests - Core	9m 28s
	1h 3m 43s

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