Test against django 5.0 and 5.1

Author: mikemanger

.github/workflows/ci.yml

@@ -76,6 +76,8 @@ jobs:
           - "3.2"
           - "4.1"
           - "4.2"
+          - "5.0"
+          - "5.1"
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4