(GH-3688) Update System.Collections.Immutable to 6.0.0 * fixes #3688
(GH-3688) Update System.Collections.Immutable to 6.0.0
* fixes #3688

gep13/cake,patriksvensson/cake,patriksvensson/cake,devlead/cake,gep13/cake,cake-build/cake,devlead/cake,cake-build/cake