Use RF 6.0 in CI

Author: aaltat

.github/workflows/CI.yml

@@ -9,7 +9,7 @@ jobs:
     strategy:
       matrix:
         python-version: [3.7, 3.10.7]
-        rf-version: [5.0.1, 4.1.3]
+        rf-version: [5.0.1, 6.0.0]
 
     steps:
     - uses: actions/checkout@v2