fixed the issue with etcd-grpc version incompatibility

[aliykh]

I had an issue with etcd grpc incompatibility:
go.etcd.io/etcd v3.3.25+incompatible // indirect
The above etcd version has used older version of grpc go which was google.golang.org/grpc v1.26.0
and as mentioned in google/trillian#2195, they have removed google.golang.org/grpc/naming

As a result of this change, the people like me who has updated version of their protoc-gen-go has faced problems with their proto-files generated by latest version of protoc.

To generate the error - run go mod tidy: google.golang.org/grpc/naming: module google.golang.org/grpc@latest found (v1.39.1), but does not contain package google.golang.org/grpc/naming

[skvoch]

Thank you, but I cannot merge your pull request because the timeout for the Acquire() function has been removed.

Anyway, I updated the dependencies (v1.0.4), this should fix your problem.

[aliykh]

It's all right. I am glad you have solved the issue. Good luck!