v2: gen contract + healthcheck rpc added

Signed-off-by: nfel <nfilsaraee@gmail.com>

auth/v1/internal_srv.proto

@@ -6,6 +6,7 @@ import "auth/v1/msg.proto";
 import "base/v1/msg.proto";
 
 service InternalAuthorizationService {
+  rpc InternalAuthorizationSrvHealth(base.v1.Empty) returns (base.v1.StatusRes);
   rpc LookUpName(LookUpNameReq) returns (LookUpNameRes) {}
   // This meant to only be used in a worker process
   rpc FetchBasicUserInfoList(base.v1.Empty) returns (BasicUserInfoList) {}