Bump buf.build/gen/go/gportal/gpcore/grpc/go from 1.3.0-20240517000739-1159d7bec4aa.3 to 1.5.1-20240819091935-cc1f2a4aef6b.1

Bump buf.build/gen/go/gportal/gpcore/grpc/go from 1.3.0-20240517000739-1159d7bec4aa.3 to 1.5.1-20240819091935-cc1f2a4aef6b.1 #469