[games/chessament] src: Fix clangd warning

Git commit 38f458001516fd00ad277140963ebc00647bdef6 by Manuel Alcaraz Zambrano.
Committed on 03/08/2026 at 10:52.
Pushed by manuelal into branch 'master'.

Fix clangd warning

M  +1    -1    src/ratinglistmodel.cpp

https://invent.kde.org/games/chessament/-/commit/38f458001516fd00ad277140963ebc00647bdef6

diff --git a/src/ratinglistmodel.cpp b/src/ratinglistmodel.cpp
index 7e31510..b142840 100644
--- a/src/ratinglistmodel.cpp
+++ b/src/ratinglistmodel.cpp
@@ -17,7 +17,7 @@ int RatingListModel::rowCount(const QModelIndex &parent) const
 {
     Q_UNUSED(parent);
 
-    return m_lists.size();
+    return static_cast<int>(m_lists.size());
 }
 
 QVariant RatingListModel::data(const QModelIndex &index, int role) const