update to Django 5.1

Author: timgraham

.github/workflows/test-python.yml

@@ -47,7 +47,7 @@ jobs:
         uses: actions/checkout@v4
         with:
           repository: 'mongodb-forks/django'
-          ref: 'mongodb-5.0.x'
+          ref: 'mongodb-5.1.x'
           path: 'django_repo'
       - name: Install system packages for Django's Python test dependencies
         run: |

django_mongodb/__init__.py

@@ -1,4 +1,4 @@
-__version__ = "5.0a0"
+__version__ = "5.1a0"
 
 # Check Django compatibility before other imports which may fail if the
 # wrong version of Django is installed.