DOC: fixed wrong description of default value in docstring for pandas.Series.str.replace (#53006)

Author: StefanieSenger

pandas/core/strings/accessor.py

@@ -1391,7 +1391,7 @@ def replace(
 
         Examples
         --------
-        When `pat` is a string and `regex` is True (the default), the given `pat`
+        When `pat` is a string and `regex` is True, the given `pat`
         is compiled as a regex. When `repl` is a string, it replaces matching
         regex patterns as with :meth:`re.sub`. NaN value(s) in the Series are
         left as is: