fix: downgrade isort version from 7.0.0 to 6.1.0 for compatibility

Author: phillipus85

requirements.txt

@@ -42,7 +42,7 @@ iniconfig==2.3.0
 ipykernel==7.1.0
 ipython==9.9.0
 ipython_pygments_lexers==1.1.1
-isort==7.0.0
+isort==6.1.0
 jaraco.classes==3.4.0
 jaraco.context==6.0.1
 jaraco.functools==4.3.0