Tests

fix: fix type-instability of `_get_root_indp` #370

Job	Run time
Tests (1, Downstream) / Tests - Downstream	22m 11s
Tests (1, Core) / Tests - Core	3m 2s
Tests (lts, Core) / Tests - Core	2m 24s
Tests (lts, Static) / Tests - Static	2m 31s
Tests (lts, Downstream2) / Tests - Downstream2	14m 41s
Tests (1, Downstream2) / Tests - Downstream2	24m 24s
Tests (1, Static) / Tests - Static	4m 5s
Tests (lts, Downstream) / Tests - Downstream	13m 31s
Tests (pre, Core) / Tests - Core	4m 4s
Tests (pre, Downstream2) / Tests - Downstream2	25m 52s
Tests (pre, Downstream) / Tests - Downstream	22m 47s
Tests (pre, Static) / Tests - Static	4m 59s
	2h 24m 31s

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