Add TAG variable to push step.
Add TAG variable to push step.

skynode/eShopOnContainers,albertodall/eShopOnContainers,skynode/eShopOnContainers,dotnet-architecture/eShopOnContainers,dotnet-architecture/eShopOnContainers,dotnet-architecture/eShopOnContainers,dotnet-architecture/eShopOnContainers,albertodall/eShopOnContainers,skynode/eShopOnContainers,albertodall/eShopOnContainers,skynode/eShopOnContainers,albertodall/eShopOnContainers,dotnet-architecture/eShopOnContainers,albertodall/eShopOnContainers,skynode/eShopOnContainers