Merge #19169: rpc: Validate provided keys for query_options parameter in listunspent

a99a3c0bd6 rpc: Validate provided keys for query_options parameter in listunspent (pasta)

Pull request description:

  At Dash, one of our developers was working with the `listunspent` RPC command, but instead of saying "minimumAmount" he said "minimmumAmount" as such the RPC wasn't working as expected.

  In https://github.com/dashpay/dash/pull/3507 we implemented a check so that `listunspent` returns an error if an unrecognized option is given. I figured I might as well adapt the code and throw up a PR here.

  Cheers!

ACKs for top commit:
  adaminsky:
    ACK `a99a3c0bd`
  meshcollider:
    Seems fine to me. utACK a99a3c0bd6

Tree-SHA512: 9fccf14979849879a51b352afa3e1932ce4a6cfc2ee97b8d405ec6e65673fe94e302795e3ec0b440e6d252f13acda620e1f6a0e86c3fa918883c3fb4600a372c

src/wallet/rpcwallet.cpp

@@ -2836,6 +2836,15 @@ static UniValue listunspent(const JSONRPCRequest& request)
     if (!request.params[4].isNull()) {
         const UniValue& options = request.params[4].get_obj();
 
+        RPCTypeCheckObj(options,
+            {
+                {"minimumAmount", UniValueType()},
+                {"maximumAmount", UniValueType()},
+                {"minimumSumAmount", UniValueType()},
+                {"maximumCount", UniValueType(UniValue::VNUM)},
+            },
+            true, true);
+
         if (options.exists("minimumAmount"))
             nMinimumAmount = AmountFromValue(options["minimumAmount"]);