fixup! Use PHP attributes when creating custom validation constraints

Author: yoannrenard

validation/custom_constraint.rst

@@ -46,7 +46,7 @@ First you need to create a Constraint class and extend :class:`Symfony\\Componen
 
 .. versionadded:: 5.2
 
-    The ability to use PHP attributes to configure constraint was introduced in
+    The ability to use PHP attributes to configure constraints was introduced in
     Symfony 5.2. Prior to this, Doctrine Annotations were the only way to
     annotate constraints.