fix: mpt_issuance_id not in tx for MPTIssuanceCreate (#2630)

fixes: #2332

src/feed/impl/TransactionFeed.cpp

@@ -210,6 +210,7 @@ TransactionFeed::pub(
 
         auto& txnPubobj = pubObj[txKey].as_object();
         rpc::insertDeliverMaxAlias(txnPubobj, version);
+        rpc::insertMPTIssuanceID(txnPubobj, meta);
 
         Json::Value nftJson;
         ripple::RPC::insertNFTSyntheticInJson(nftJson, tx, *meta);