CI: test with GAP 4.13

fingolfin · fingolfin · commit f40e00650da9 · 2024-03-24T01:30:34.000+01:00
diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
@@ -25,6 +25,7 @@ jobs:
       matrix:
         gap-branch:
           - master
+          - stable-4.13
           - stable-4.12
 
     steps:
