Get ready for release

Author: GrahamCampbell

src/HttpClient/Plugin/History.php

@@ -28,10 +28,12 @@
  */
 final class History implements Journal
 {
-    /**
-     * The last response.
-     */
-    private ?\Psr\Http\Message\ResponseInterface $lastResponse;
+    private ?ResponseInterface $lastResponse;
+
+    public function __construct()
+    {
+        $this->lastResponse = null;
+    }
 
     /**
      * Get the last response.