[V2] Add pod_name field to TailLogsRequest (#7221)

Signed-off-by: Kevin Su <pingsutw@apache.org>

Author: pingsutw

flyteidl2/dataproxy/dataproxy_service.proto

@@ -202,6 +202,9 @@ message TailLogsRequest {
 
   // The attempt number.
   uint32 attempt = 2 [(buf.validate.field).uint32.gt = 0];
+
+  // The pod name to tail logs from. If not provided, attempt to find the primary pod, else assume the first pod.
+  string pod_name = 3;
 }
 
 // Reponse message for tailing logs.