Enable ruff rules to check for ambiguous code

This enables some ruff rules to check for ambiguous and dead Python
code, which might cause unintended side-effects.

The enabled rules are:

- a bunch of rules related to shadowing of builtin structures (A)
- a bunch of rules checking for unused arguments (ARG)
- a rule checking for useless expressions (B018)
- a rule checking for unbound loop variables (B023)
- a rule checking redefined function parameters (PLR1704)

source/tools/entity/entvalidate.py

@@ -20,7 +20,7 @@ Please create the file: {}
 You can do that by running 'pyrogenesis -dumpSchema' in the 'system' directory
 """
 XMLLINT_ERROR_MSG = (
-    "xmllint not found in your PATH, please install it " "(usually in libxml2 package)"
+    "xmllint not found in your PATH, please install it (usually in libxml2 package)"
 )