Revert "Update go-tss to 1.5.6"

This reverts commit a4a8eb15.

changed milestone to %Release-1.101.0

approved this merge request

approved this merge request

(To check, is this in order to test go-tss 1.5.6 in a 1.101 patch rather than 1.101.0
(as previously described for 1.99)?)

Edit: This Discord message now seen!

merged