Replace User Port with Auth Port in main.go

[Feyzanrs]

We need to update the cmd/service/main.go file to replace the User port with the Authentication port in the GRPC service configuration.

op-be-auth/cmd/service/main.go

Line 136 in 887939b

go pc_grpc.NewGrpc(queryHandler, commandHandler).Serve(internalConfig.Grpc.UserPort)

The updated version of the specified line should be as follows:

go pc_grpc.NewGrpc(queryHandler, commandHandler).Serve(internalConfig.Grpc.AuthenticationPort)

The changes will be merged into the first/hsm/1/create-first branch first. Therefore, set the base branch of the pull request as first/hsm/1/create-first.