Readd grpc.pb.go based on compiler standardization in OC repos

Pull Request Test Coverage Report for Build 8901309589

0 of 1766 (0.0%) changed or added relevant lines in 15 files are covered.
No unchanged relevant lines lost coverage.
Overall coverage decreased (-0.001%) to 1.202%

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
bgp/bgp_grpc.pb.go	0	33	0.0%
factory_reset/factory_reset_grpc.pb.go	0	33	0.0%
debug/debug_grpc.pb.go	0	38	0.0%
otdr/otdr_grpc.pb.go	0	38	0.0%
bootconfig/bootconfig_grpc.pb.go	0	59	0.0%
diag/diag_grpc.pb.go	0	85	0.0%
mpls/mpls_grpc.pb.go	0	90	0.0%
os/os_grpc.pb.go	0	90	0.0%
wavelength_router/wavelength_router_grpc.pb.go	0	121	0.0%
healthz/healthz_grpc.pb.go	0	142	0.0%
<!--	Total:	0	1766	0.0%	-->