Deprecated warning logs for protoc-gen-go/generator (NGP-5834)

[agoyalib]

Atlas app toolkit uses github.com/golang/protobuf. This library is superseded by google.golang.org/protobuf.
Any repo with dependency on atlas-app-toolkit, will get an error

WARNING: Package "github.com/golang/protobuf/protoc-gen-go/generator" is deprecated. A future release of golang/protobuf will delete this package, which has long been excluded from the compatibility promise.

So, this dependency needs to be changed.

[auhlik]

Reference to cloud JIRA ticket: https://infoblox.atlassian.net/browse/ATLAS-5834