Update dependency pluggy to v1.6.0

Author: renovate[bot]

requirements.txt

@@ -12,7 +12,7 @@ mccabe==0.7.0
 nodeenv==1.9.1
 packaging==25.0
 platformdirs==4.3.8
-pluggy==1.5.0
+pluggy==1.6.0
 pycodestyle==2.13.0
 pyflakes==3.3.2
 pylint==3.3.7