fixup: nitpicks Python code fixed using ruff

Author: autoruff

plugwise/util.py

@@ -225,7 +225,7 @@ def get_vendor_name(module: etree, model_data: ModuleData) -> ModuleData:
 
 def parse_escapes(text):
     """Helper-function for get_vendor_name()."""
-    fixed_escapes = re.sub(r'(?<!\\)(\\\\)*("|\\$)', r'\\\1\2', text)
+    fixed_escapes = re.sub(r'(?<!\\)(\\\\)*("|\\$)', r"\\\1\2", text)
     return ast.literal_eval(f'"{fixed_escapes}"')