Updated Windows workflow to use Qt MinGW 9

.github/workflows/windows-cmake.yml

@@ -76,14 +76,13 @@ jobs:
         host: windows
         arch: win64_mingw
         dir: ${{ env.QT_DIR }}
-        tools: 'tools_mingw'
+        tools: 'tools_mingw90'
         setup-python: false
 
     - name: ➕ Add Qt-bundled MinGW to PATH
       shell: powershell
-      run: |
-        $mingwPath = Get-ChildItem "${{ env.QT_DIR }}\Tools" | Where-Object { $_.Name -like "mingw*" } | Select-Object -First 1
-        echo "${{ env.QT_DIR }}\Tools\$($mingwPath.Name)\bin" >> $env:GITHUB_PATH
+      run: |  
+        echo "${{ env.QT_DIR }}\Tools\mingw900_64\bin" >> $env:GITHUB_PATH
 
     - name: 🛠️ Configure CMake (MinGW)
       shell: powershell