Run CI against julia v1.11, too (#826)

Author: martinholters

.github/workflows/CI.yml

@@ -17,7 +17,8 @@ jobs:
           - "1.7"
           - "1.8"
           - "1.9"
-          - "~1.10.0-0"
+          - "1.10"
+          - "~1.11.0-0"
           - nightly
         os:
           - ubuntu-latest