Fixed issues with strict type added by the code style

Author: yann-eugone

src/Enum.php

@@ -71,7 +71,7 @@ public function getLabel($value): string
     {
         $this->init();
 
-        $label = \array_search($value, $this->choices, true);
+        $label = \array_search($value, $this->choices, false);
         if ($label === false) {
             throw InvalidArgumentException::enumMissingValue($this, $value);
         }

src/Exception/InvalidArgumentException.php

@@ -19,8 +19,15 @@ public static function unregisteredEnum(string $name): self
         ));
     }
 
-    public static function enumMissingValue(EnumInterface $enum, string $value): self
+    public static function enumMissingValue(EnumInterface $enum, mixed $value): self
     {
+        if (\is_object($value) && \method_exists($value, '__toString')) {
+            $value = (string)$value;
+        }
+        if (!\is_string($value)) {
+            $value = \get_debug_type($value);
+        }
+
         return new self(\sprintf(
             'Enum "%s" does not have "%s" value.',
             $enum->getName(),