Updated cq_client library

third_party/cq_client/cq.proto

 syntax = "proto2";
 
 // This message describes a Commit Queue configuration. The config file cq.cfg
 // should be stored in the config directory located on the branch that this CQ
 // should commit to.
 message Config {
   // Required. Version of the config format.
   optional int32 version = 1;
 
   // Required. Name of the CQ. May only contain characters [a-zA-Z0-9_]. It is
@@ skipping 141 matching lines @@
       optional string name = 1;
 
       // Builders on which tryjobs should be triggered.
       repeated Builder builders = 2;
     }
 
     // Buckets on which tryjobs are triggered/watched.
     repeated Bucket buckets = 1;
   }
 
-  message PresubmitCheckVerifier {}
+  message PresubmitCheckVerifier {
+    // After this timeout in seconds, the presubmit process will be killed.
+    optional int32 timeout = 1;
+  }
 }