uncomment proto.MergedRegistry() & update cosmos/gogoproto to v1.5.0

https://github.com/ark-us/wasmx/blob/raft/app/app.go#L917

```
protoFiles, err := proto.MergedRegistry()
```

temporary disabled due to libp2p proto files not being found

TODO uncomment & use cosmos/gogoproto v1.5.0
```
	// protoFiles, err := proto.MergedRegistry()
```