message: Fix outdated keypool size default
diff: @@ -1853,7 +1853,7 @@ static RPCHelpMan keypoolrefill()
  "\nFills the keypool."+
  HELP_REQUIRING_PASSPHRASE,
  {
  - {"newsize", RPCArg::Type::NUM, RPCArg::Default{100}, "The new keypool size"},
  + {"newsize", RPCArg::Type::NUM, RPCArg::DefaultHint{strprintf("%u, or as set by -keypool", DEFAULT_KEYPOOL_SIZE)}, "The new keypool size"},
  },
  RPCResult{RPCResult::Type::NONE, "", ""},
  RPCExamples{
  