refactor: chain aware with interface

src/Chain/ChainAwareInterface.php

@@ -6,5 +6,5 @@
 
 interface ChainAwareInterface
 {
-    public function setChain(Chain $chain): void;
+    public function setChain(ChainInterface $chain): void;
 }

src/Chain/ChainAwareTrait.php

@@ -6,9 +6,9 @@
 
 trait ChainAwareTrait
 {
-    private Chain $chain;
+    private ChainInterface $chain;
 
-    public function setChain(Chain $chain): void
+    public function setChain(ChainInterface $chain): void
     {
         $this->chain = $chain;
     }