fix tests

.github/workflows/test.yml

@@ -14,11 +14,11 @@ jobs:
     strategy:
       fail-fast: true
       matrix:
-        python-version: [3.6, 3.7, 3.8, 3.9]
-        django-version: [2.2, 3.1]
+        python-version: [3.9, 3.10, 3.11]
+        django-version: [3.2, 4.0, 4.2]
     services:
       postgres:
-        image: postgres:10
+        image: postgres:14
         ports:
           - 5432:5432
         options: --health-cmd pg_isready --health-interval 10s --health-timeout 5s --health-retries 5
@@ -27,7 +27,7 @@ jobs:
           POSTGRES_PASSWORD: postgres
           POSTGRES_DB: postgres
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v2
       with:
@@ -53,11 +53,11 @@ jobs:
   lint_python:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v2
+      uses: actions/setup-python@v5
       with:
-        python-version: 3.7
+        python-version: 3.11
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip

setup.py

@@ -27,7 +27,7 @@
     install_requires=[
         'phonenumbers',
         'pillow',
-        'django>=4.2.6',
+        'django>=3.2',
         'django-oscar>=3.2.2',
         'django-phonenumber-field>=6.4.0',
     ]

tests/_site/apps/custom_invoices/models.py

@@ -1,5 +1,5 @@
 from django.db import models
-from django.utils.translation import ugettext_lazy as _
+from django.utils.translation import gettext_lazy as _
 
 from oscar_invoices.abstract_models import AbstractInvoice