Update to nakama-common 1.3.1.

go.mod

go.sum

...golang/protobuf/protoc-gen-go/descriptor/descriptor.pb.go

...golang/protobuf/protoc-gen-go/descriptor/descriptor.proto

vendor/github.com/golang/protobuf/ptypes/any/any.pb.go

vendor/github.com/golang/protobuf/ptypes/any/any.proto

...github.com/golang/protobuf/ptypes/duration/duration.pb.go

...github.com/golang/protobuf/ptypes/duration/duration.proto

vendor/github.com/golang/protobuf/ptypes/empty/empty.pb.go

vendor/github.com/golang/protobuf/ptypes/struct/struct.pb.go

vendor/github.com/golang/protobuf/ptypes/struct/struct.proto

...thub.com/golang/protobuf/ptypes/timestamp/timestamp.pb.go

...thub.com/golang/protobuf/ptypes/timestamp/timestamp.proto

...github.com/golang/protobuf/ptypes/wrappers/wrappers.pb.go

...github.com/golang/protobuf/ptypes/wrappers/wrappers.proto

vendor/github.com/heroiclabs/nakama-common/api/api.pb.go

vendor/github.com/heroiclabs/nakama-common/api/api.proto

.../github.com/heroiclabs/nakama-common/rtapi/realtime.pb.go

...or/github.com/heroiclabs/nakama-common/runtime/runtime.go

vendor/modules.txt