Fix the bug that Getting unserialized object from cache when using Trigger::getCurrent() (#6)

Co-authored-by: Deeka Wong <[email protected]>

Author: huangdijia

Diff for: src/Trigger.php

@@ -197,7 +197,13 @@ public function rememberCurrent(BinLogCurrent $binLogCurrent): void
      */
     public function getCurrent(): ?BinLogCurrent
     {
-        return with($this->cache->get($this->replicationCacheKey));
+        return with($this->cache->get($this->replicationCacheKey), function ($cache) {
+            if (! $cache) {
+                return null;
+            }
+
+            return unserialize($cache) ?: null;
+        });
     }
 
     /**