gh-106487: Allow the 'count' argument of str.replace to be a keyword (#106488)

Objects/unicodeobject.c

@@ -12025,10 +12025,10 @@ str.replace as unicode_replace
 
     old: unicode
     new: unicode
+    /
     count: Py_ssize_t = -1
         Maximum number of occurrences to replace.
         -1 (the default value) means replace all occurrences.
-    /
 
 Return a copy with all occurrences of substring old replaced by new.
 
@@ -12039,7 +12039,7 @@ replaced.
 static PyObject *
 unicode_replace_impl(PyObject *self, PyObject *old, PyObject *new,
                      Py_ssize_t count)
-/*[clinic end generated code: output=b63f1a8b5eebf448 input=147d12206276ebeb]*/
+/*[clinic end generated code: output=b63f1a8b5eebf448 input=3345c455d60a5499]*/
 {
     return replace(self, old, new, count);
 }