[REVIEW] Fix/protobuff dependency

[rosscdh]

not a go developer so taking a punt here

[rosscdh]

Hmm no... built fine on first try with correct protobuff (no errors)
built again now back to

[12:21:55] ross:wurkflow-envs git:(master) $ ENVIRONMENT=staging make
Error: loading generator plugins: plugin /root/.config/kustomize/plugin/kustomize-sops/v1/sopssecret/SopsSecret fails to load: plugin.Open("/root/.config/kustomize/plugin/kustomize-sops/v1/sopssecret/SopsSecret"): plugin was built with a different version of package github.com/golang/protobuf/proto
make: *** [generate] Error 1