feat: add integer method to deserializes value trait (#44)

Author: e7paul

src/Filters/Concerns/DeserializesValue.php

@@ -49,6 +49,20 @@ public function asBoolean(): self
         return $this;
     }
 
+    /**
+     * Deserialize value as a integer.
+     *
+     * @return $this
+     */
+    public function asInteger(): self
+    {
+        $this->deserializeUsing(
+            static fn($value) => filter_var($value, FILTER_VALIDATE_INT)
+        );
+
+        return $this;
+    }
+
     /**
      * Deserialize the value.
      *