[GA] Disable Unit tests for win64 build in GA
[GA] Disable Unit tests for win64 build in GA

More recent GA environments have broken the ability to run the win64
build's unit tests via Wine. Disable for now.

PIVX-Project/PIVX,PIVX-Project/PIVX,PIVX-Project/PIVX,PIVX-Project/PIVX,PIVX-Project/PIVX,PIVX-Project/PIVX,PIVX-Project/PIVX,PIVX-Project/PIVX,PIVX-Project/PIVX