Fix int value handling in Matcher (#4749)

Add `int` values (for `LENGTH`) in _get_attr_values() instead of
treating `int` like `dict`.

spacy/matcher/matcher.pyx

@@ -677,7 +677,9 @@ def _get_attr_values(spec, string_store):
             value = string_store.add(value)
         elif isinstance(value, bool):
             value = int(value)
-        elif isinstance(value, (dict, int)):
+        elif isinstance(value, int):
+            pass
+        elif isinstance(value, dict):
             continue
         else:
             raise ValueError(Errors.E153.format(vtype=type(value).__name__))