Add Qt version

Author: neuroconvergent

.github/workflows/ctest.yml

@@ -16,6 +16,7 @@ jobs:
         uses: jurplel/install-qt-action@v3
         with:
           aqtversion: "==3.1.*"
+          version: "6.8.3"
           dir: ${{ github.workspace }}/Qt
           host: "linux"
           target: "desktop" # desktop libraries