perf: Replace the Validator.evolve method with an equivalent class attribute

Author: Stranger6667

CHANGELOG.rst

@@ -5,6 +5,7 @@ v4.3.0
   certain input types (#893)
 * Cache reference lookups for subschemas (#893)
 * Use cached lookups for resolving fragments if the referent document is known (#893)
+* Replace the ``Validator.evolve`` method with an equivalent class attribute
 * Implement a PEP544 Protocol for validator classes (#890)
 
 v4.2.1

jsonschema/validators.py

@@ -169,6 +169,7 @@ class Validator:
         schema = attr.ib(repr=reprlib.repr)
         resolver = attr.ib(default=None, repr=False)
         format_checker = attr.ib(default=None)
+        evolve = attr.evolve
 
         def __attrs_post_init__(self):
             if self.resolver is None:
@@ -182,9 +183,6 @@ def check_schema(cls, schema):
             for error in cls(cls.META_SCHEMA).iter_errors(schema):
                 raise exceptions.SchemaError.create_from(error)
 
-        def evolve(self, **kwargs):
-            return attr.evolve(self, **kwargs)
-
         def iter_errors(self, instance, _schema=None):
             if _schema is not None:
                 warnings.warn(