Merge bitcoin/bitcoin#29184: RPC/Blockchain: scanblocks: Accept named param for filter_false_positives

5779010ed7 RPC/Blockchain: scanblocks: Accept named param for filter_false_positives (Luke Dashjr)

Pull request description:

  Possibly due to a silent cross-merge, `scanblocks` was left out of 96233146dd

ACKs for top commit:
  stickies-v:
    ACK 5779010ed7
  theStack:
    ACK 5779010ed7

Tree-SHA512: bade107c7cb5fdd1265224c263a1e1edfc8bc0698b3abfac8d65c49a270181f0311713f7243813de17932a7a7ca65a36850e527ab0b433cf64c32191d3adde70

src/rpc/blockchain.cpp

@@ -2306,7 +2306,7 @@ static RPCHelpMan scanblocks()
             RPCArg{"start_height", RPCArg::Type::NUM, RPCArg::Default{0}, "Height to start to scan from"},
             RPCArg{"stop_height", RPCArg::Type::NUM, RPCArg::DefaultHint{"chain tip"}, "Height to stop to scan"},
             RPCArg{"filtertype", RPCArg::Type::STR, RPCArg::Default{BlockFilterTypeName(BlockFilterType::BASIC)}, "The type name of the filter"},
-            RPCArg{"options", RPCArg::Type::OBJ, RPCArg::Optional::OMITTED, "",
+            RPCArg{"options", RPCArg::Type::OBJ_NAMED_PARAMS, RPCArg::Optional::OMITTED, "",
                 {
                     {"filter_false_positives", RPCArg::Type::BOOL, RPCArg::Default{false}, "Filter false positives (slower and may fail on pruned nodes). Otherwise they may occur at a rate of 1/M"},
                 },

src/rpc/client.cpp

@@ -91,6 +91,7 @@ static const CRPCConvertParam vRPCConvertParams[] =
     { "scanblocks", 2, "start_height" },
     { "scanblocks", 3, "stop_height" },
     { "scanblocks", 5, "options" },
+    { "scanblocks", 5, "filter_false_positives" },
     { "scantxoutset", 1, "scanobjects" },
     { "addmultisigaddress", 0, "nrequired" },
     { "addmultisigaddress", 1, "keys" },