RPC/blockchain: Add getblockfrompeer nodeid alias for backward compatibility

Knots 21.x and 22.0 used nodeid rather than peer_id param name

Author: luke-jr

src/rpc/blockchain.cpp

@@ -437,7 +437,7 @@ static RPCHelpMan getblockfrompeer()
         "Returns an empty JSON object if the request was successfully scheduled.",
         {
             {"blockhash", RPCArg::Type::STR_HEX, RPCArg::Optional::NO, "The block hash to try to fetch"},
-            {"peer_id", RPCArg::Type::NUM, RPCArg::Optional::NO, "The peer to fetch it from (see getpeerinfo for peer IDs)"},
+            {"peer_id|nodeid", RPCArg::Type::NUM, RPCArg::Optional::NO, "The peer to fetch it from (see getpeerinfo for peer IDs)"},
         },
         RPCResult{RPCResult::Type::OBJ, "", /*optional=*/false, "", {}},
         RPCExamples{

src/rpc/client.cpp

@@ -65,6 +65,7 @@ static const CRPCConvertParam vRPCConvertParams[] =
     { "getbalance", 2, "include_watchonly" },
     { "getbalance", 3, "avoid_reuse" },
     { "getblockfrompeer", 1, "peer_id" },
+    { "getblockfrompeer", 1, "nodeid" },
     { "getblockhash", 0, "height" },
     { "waitforblockheight", 0, "height" },
     { "waitforblockheight", 1, "timeout" },