github workflows fix

Author: andibacher

.github/workflows/cmake-ubuntu.yml

@@ -21,7 +21,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-22.04]
-        qt_version: [6.2.4, 6.5.3, 6.6.3, 6.7.3, 6.8.3 6.9.1]
+        qt_version: [6.2.4, 6.5.3, 6.6.3, 6.7.3, 6.8.3, 6.9.1]
 
     steps:
     - name: Install ninja