Follow up !20600 - Update tests to TrigCompositeAux to V2

This follows on from !20600 (merged)

Two tests are explicitly updated to V2 of the TrigComposite, with the updated aux store.

The decisions Dyn Aux is added to the text.

The size of the base and dyn payload is printed separately.

This is to allow for better investigating of size changes.

cc @tbold