Remove python-dev

Author: RadoRado

.github/workflows/django.yml

@@ -21,7 +21,7 @@ jobs:
       with:
         python-version: 3.9
     - name: psycopg2 prerequisites
-      run: sudo apt-get install python-dev libpq-dev
+      run: sudo apt-get install libpq-dev
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip