Enable isort check

Author: jordimas

.github/workflows/ci.yml

@@ -30,10 +30,10 @@ jobs:
         run: |
           flake8 open_dubbing/ tests/ --exclude pydub*
 
-#      - name: Check code with isort
-#        if: ${{ always() }}
-#        run: |
-#          isort --check-only open_dubbing/ tests/
+      - name: Check code with isort
+        if: ${{ always() }}
+        run: |
+          isort --check-only open_dubbing/ tests/
 
   run-tests:
     environment: CI/CD