Tests: explicitly select managed provider for managed tests
Tests: explicitly select managed provider for managed tests

mathnet/mathnet-numerics,shaia/mathnet-numerics,shaia/mathnet-numerics,shaia/mathnet-numerics,mathnet/mathnet-numerics,mathnet/mathnet-numerics,shaia/mathnet-numerics,mathnet/mathnet-numerics,mathnet/mathnet-numerics,shaia/mathnet-numerics