Update dependency iniconfig to v2.1.0

Author: renovate[bot]

requirements.txt

@@ -5,7 +5,7 @@ coverage==7.7.0
 dill==0.3.9
 exceptiongroup==1.2.2
 flake8==7.1.2
-iniconfig==2.0.0
+iniconfig==2.1.0
 isort==6.0.1
 lazy-object-proxy==1.10.0
 mccabe==0.7.0