ci: how about this?

Author: JonneSaloranta

.github/workflows/django-test-ci.yaml

@@ -43,13 +43,13 @@ jobs:
 
             - name: Export environment variables
               run: |
-                  export SECRET_KEY=${{ secrets.SECRET_KEY }}
-                  export DEBUG=${{ secrets.DEBUG }}
-                  export ALLOWED_HOSTS=${{ secrets.ALLOWED_HOSTS }}
-                  export TIME_ZONE=${{ secrets.TIME_ZONE }}
-                  export INTERNAL_IPS=${{ secrets.INTERNAL_IPS }}
-                  export SITE_URL=${{ secrets.SITE_URL }}
-                  export ALLOW_REGISTRATION=${{ secrets.ALLOW_REGISTRATION }}
+                  echo "SECRET_KEY=${{ secrets.SECRET_KEY }}" >> $GITHUB_ENV
+                  echo "DEBUG=${{ secrets.DEBUG }}" >> $GITHUB_ENV
+                  echo "ALLOWED_HOSTS=${{ secrets.ALLOWED_HOSTS }}" >> $GITHUB_ENV
+                  echo "TIME_ZONE=${{ secrets.TIME_ZONE }}" >> $GITHUB_ENV
+                  echo "INTERNAL_IPS=${{ secrets.INTERNAL_IPS }}" >> $GITHUB_ENV
+                  echo "SITE_URL=${{ secrets.SITE_URL }}" >> $GITHUB_ENV
+                  echo "ALLOW_REGISTRATION=${{ secrets.ALLOW_REGISTRATION }}" >> $GITHUB_ENV
 
             - name: Run migrations
               run: |