Update PdoMock.php

Signed-off-by: Nathanael Esayeas <[email protected]>

Author: ghostwriter

test/unit/Adapter/Driver/TestAsset/PdoMock.php

@@ -5,6 +5,7 @@
 namespace LaminasTest\Db\Adapter\Driver\TestAsset;
 
 use PDO;
+use ReturnTypeWillChange;
 
 /**
  * Stub class
@@ -15,14 +16,12 @@ public function __construct()
     {
     }
 
-    /** @return bool */
-    public function beginTransaction()
+    public function beginTransaction(): bool
     {
         return true;
     }
 
-    /** @return bool */
-    public function commit()
+    public function commit(): bool
     {
         return true;
     }