chore: correct function name

Author: arg2009

src/KeyRemoved.php

@@ -26,7 +26,7 @@ public function getPath(): string
         return $this->path;
     }
 
-    public function getKey()
+    public function getName()
     {
         return $this->name;
     }

tests/Feature/JsonDiffTest.php

@@ -191,7 +191,7 @@ public function test_elements_removed_between_jsons(): void
 
         // Check that the correct keys are removed
         $keysRemoved->each(function (KeyRemoved $keyRemoved) use ($removedItems): void {
-            $this->assertArrayHasKey($keyRemoved->getKey(), $removedItems);
+            $this->assertArrayHasKey($keyRemoved->getName(), $removedItems);
         });
 
         // Check that the correct values are removed