Fix severe memory leak

6.10.* has a severe memory leak.
https://qt-project.atlassian.net/browse/QTBUG-141377

6.9.3 works well enough.

resolves https://github.com/jellyfin/jellyfin-desktop/issues/1091

Author: andrewrabert

.github/workflows/build-macos.yml

@@ -22,7 +22,10 @@ jobs:
     - name: Install Qt
       uses: jurplel/install-qt-action@v4
       with:
-        version: '6.10.1'
+        # using older version due to severe memory leak
+        # https://qt-project.atlassian.net/browse/QTBUG-141377https://qt-project.atlassian.net/browse/QTBUG-141377
+        #version: '6.10.1'
+        version: '6.9.3'
         arch: clang_64
         modules: 'qtwebengine qtwebchannel qtpositioning'
     - name: Install dependencies

.github/workflows/build-windows.yml

@@ -2,7 +2,9 @@ name: build-windows
 
 env:
   MPV_VERSION: "20251214-git-f7be2ee"
-  QT_VERSION: "6.10.1"
+  # using older version due to severe memory leak
+  # https://qt-project.atlassian.net/browse/QTBUG-141377
+  QT_VERSION: "6.9.3"
 
 on:
   workflow_call:

external/cef

@@ -0,0 +1 @@
+/home/ar/src/cef/cef_binary_143.0.13+g30cb3bd+chromium-143.0.7499.170_linux64