Tests

Apply tagbot_marker_env patch (#263) #758

Job	Run time
Tests (lts, ubuntu-latest) / Julia lts - ubuntu-latest	12m 27s
Tests (lts, macOS-latest) / Julia lts - macOS-latest	11m 0s
Tests (1, windows-latest) / Julia 1 - windows-latest	18m 59s
Tests (1, ubuntu-latest) / Julia 1 - ubuntu-latest	16m 54s
Tests (lts, windows-latest) / Julia lts - windows-latest	12m 12s
Tests (1, macOS-latest) / Julia 1 - macOS-latest	11m 32s
Tests	4s
	1h 23m 8s

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