Fix update of dual-time solver for species transport.

[bigfooted]

Proposed Changes

This fixes the update of the dual time step for species transport, enabling transient simulations

Related Work

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[Cristopher-Morales]

It looks fine for me, I am wondering why the Aachen turbo test case fails with this update.

[bigfooted]

It looks fine for me, I am wondering why the Aachen turbo test case fails with this update.

I reran the regression and it passed, so it looks like some regression tests are not very deterministic.