Optimized code

* ValidatesAttributes remove catch "Exception"

* Added Annotations of PHP8 for devtool.

Co-authored-by: 李铭昕 <715557344@qq.com>

Author: VinchanGit

src/Concerns/FormatsMessages.php

@@ -83,9 +83,8 @@ public function getDisplayableAttribute(string $attribute): string
      * Get the displayable name of the value.
      *
      * @param mixed $value
-     * @return string
      */
-    public function getDisplayableValue(string $attribute, $value)
+    public function getDisplayableValue(string $attribute, $value): string
     {
         if (isset($this->customValues[$attribute][$value])) {
             return $this->customValues[$attribute][$value];

src/Concerns/ValidatesAttributes.php

@@ -1057,8 +1057,6 @@ public function validateTimezone(string $attribute, $value): bool
     {
         try {
             new DateTimeZone($value);
-        } catch (Exception $e) {
-            return false;
         } catch (Throwable $e) {
             return false;
         }