* Pin protobuf packages
It happened in the past that I ran with the wrong protobuf version
installed locally, and apparently there is even still some file wrong in
splithttp. Fix this issue once and for all.
* bump protobuf packages
* Revert "bump protobuf packages"
This reverts commit 7a3509346a.
* Revert "Revert "bump protobuf packages""
This reverts commit bb79707d15.
* fix deprecated grpc usage
mmmray