Use actions/setup-python@v2

Author: RadoRado

.github/workflows/django.yml

@@ -16,10 +16,10 @@ jobs:
         options: --health-cmd pg_isready --health-interval 10s --health-timeout 5s --health-retries 5
     steps:
     - uses: actions/checkout@v2
-    - name: Set up Python 3.7
-      uses: actions/setup-python@v1
+    - name: Set up Python 3.9
+      uses: actions/setup-python@v2
       with:
-        python-version: 3.7
+        python-version: 3.9
     - name: psycopg2 prerequisites
       run: sudo apt-get install python-dev libpq-dev
     - name: Install dependencies
@@ -35,7 +35,7 @@ jobs:
     needs: build
     if: github.ref == 'refs/heads/master'
     steps:
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v2
       - name: Deploy to Heroku
         env:
           HEROKU_API_KEY: ${{ secrets.HEROKU_API_KEY }}