Merge bitcoin/bitcoin#25095: rpc: Fix implicit-integer-sign-change in gettxout

fa347a9 rpc: Fix implicit-integer-sign-change in gettxout (MacroFake)

Pull request description:

ACKs for top commit:
  theStack:
    Code-review ACK fa347a9

Tree-SHA512: 2a1128f714119b6b6cfeb20ee59c4f46404d5a83942253c73de64b0289a7d41e4437cf77d19b1cf623e2dd15fbaa1ec7acd03cc5d6dde41b3c7d06a082073ea1

Author: fanquake

src/rpc/blockchain.cpp

@@ -993,8 +993,7 @@ static RPCHelpMan gettxout()
     UniValue ret(UniValue::VOBJ);
 
     uint256 hash(ParseHashV(request.params[0], "txid"));
-    int n = request.params[1].get_int();
-    COutPoint out(hash, n);
+    COutPoint out{hash, request.params[1].getInt<uint32_t>()};
     bool fMempool = true;
     if (!request.params[2].isNull())
         fMempool = request.params[2].get_bool();