minor symfony#60980 [TypeInfo] Optimize enum check (norkunas)

This PR was merged into the 7.3 branch.

Discussion
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[TypeInfo] Optimize enum check

| Q             | A
| ------------- | ---
| Branch?       | 7.3
| Bug fix?      | no
| New feature?  | no
| Deprecations? | no
| Issues        | Fix symfony#60956 (comment)
| License       | MIT

Commits
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e8b8282 [TypeInfo] Optimize enum check

Author: xabbuh

src/Symfony/Component/TypeInfo/TypeFactoryTrait.php

@@ -412,7 +412,7 @@ public static function fromValue(mixed $value): Type
         }
 
         $type = match (true) {
-            \is_object($value) && is_subclass_of($value::class, \UnitEnum::class) => Type::enum($value::class),
+            $value instanceof \UnitEnum => Type::enum($value::class),
             \is_object($value) => \stdClass::class === $value::class ? self::object() : self::object($value::class),
             \is_array($value) => self::builtin(TypeIdentifier::ARRAY),
             default => null,