Updated Qt to 6.2.9 on macOS.

Telegram/build/prepare/prepare.py

@@ -445,7 +445,7 @@ if customRunCommand:
 stage('patches', """
     git clone https://github.com/desktop-app/patches.git
     cd patches
-    git checkout 20a7c5ffd8
+    git checkout e0cdca2e79
 """)
 
 stage('msys64', """

Telegram/build/qt_version.py

@@ -2,7 +2,7 @@ import sys, os
 
 def resolve(arch):
     if sys.platform == 'darwin':
-        os.environ['QT'] = '6.2.8'
+        os.environ['QT'] = '6.2.9'
     elif sys.platform == 'win32':
         if arch == 'arm' or 'qt6' in sys.argv:
             print('Choosing Qt 6.')