Build with Qt 6.7.3

Author: emericg

.github/workflows/builds_desktop_qmake.yml

@@ -15,7 +15,7 @@ on:
 env:
   APP_NAME: "toolBLEx"
   APP_VERSION: "0.13"
-  QT_VERSION: "6.8.0"
+  QT_VERSION: "6.7.3"
 
 #-------------------------------------------------------------------------------
 # Workflow jobs