Update dependency isort to v7

Author: renovate[bot]

requirements.txt

@@ -6,7 +6,7 @@ dill==0.4.0
 exceptiongroup==1.3.0
 flake8==7.3.0
 iniconfig==2.2.0
-isort==6.1.0
+isort==7.0.0
 lazy-object-proxy==1.12.0
 mccabe==0.7.0
 nodeenv==1.9.1