Upgrade "py" test dependency (security).

test_requirements.txt

@@ -13,7 +13,7 @@ mccabe==0.6.1
 more-itertools==8.6.0
 pluggy==0.13.1
 pathspec==0.8.1; python_version >= '3.8'
-py==1.9.0
+py==1.10.0
 pycodestyle==2.6.0
 pyflakes==2.2.0
 pykwalify==1.7.0