Added Django 5.1 to test matrix

Author: selwin

.github/workflows/test.yml

@@ -16,33 +16,34 @@ jobs:
       - uses: chartboost/ruff-action@v1
         with:
           version: 0.4.8
-          args: 'format --check'    
+          args: "format --check"
 
   build:
     runs-on: ubuntu-latest
     name: Python${{ matrix.python-version }}/Django${{ matrix.django-version }}
     strategy:
       matrix:
         python-version: ["3.9", "3.10", "3.11", "3.12"]
-        django-version: ["4.2", "5.0"]
+        django-version: ["4.2", "5.0", "5.1"]
         exclude:
           - python-version: "3.9"
             django-version: "5.0"
-            
+          - python-version: "3.9"
+            django-version: "5.1"
 
     steps:
-    - uses: actions/checkout@v4
+      - uses: actions/checkout@v4
 
-    - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v5
-      with:
-        python-version: ${{ matrix.python-version }}
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python-version }}
 
-    - name: Install dependencies
-      run: |
-        python -m pip install --upgrade pip
-        pip install "Django~=${{ matrix.django-version }}.0"
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install "Django~=${{ matrix.django-version }}.0"
 
-    - name: Run Test
-      run: |
-        `which django-admin` test post_office --settings=post_office.test_settings --pythonpath=.
+      - name: Run Test
+        run: |
+          `which django-admin` test post_office --settings=post_office.test_settings --pythonpath=.