Fix proto name annotation.
Fix proto name annotation.

A newer proto toolchain will error with:
protoc-gen-go: Go package
"github.com/googlecloudrobotics/core/src/proto/mission" has inconsistent names
 mission (src/proto/mission/mission_cr.proto) and
 proto (src/proto/mission/mission.proto)

Change-Id: If0044f6161a9efcb62867c60340b43b5c35ee526
GitOrigin-RevId: 06b7709de31adf29fdd635c77e468e12546289ea

googlecloudrobotics/core,googlecloudrobotics/core,googlecloudrobotics/core