PHPUnit fixes

Author: SharkMachine

test/Handler/RequestMutationHandlerCollectionTest.php

@@ -19,13 +19,13 @@ public function testHandlers(): void
         $handlerOne = new class () implements RequestMutationHandlerInterface {
             public function handleRequest(RequestInterface $request): RequestInterface
             {
-                return new Psr17Factory()->createRequest('GET', 'https://example.com')->withHeader('X-Foo', 'bar');
+                return (new Psr17Factory())->createRequest('GET', 'https://example.com')->withHeader('X-Foo', 'bar');
             }
         };
         $handlerTwo = new class () implements RequestMutationHandlerInterface {
             public function handleRequest(RequestInterface $request): RequestInterface
             {
-                return new Psr17Factory()->createRequest('GET', 'https://example.com')->withHeader('X-Foo', 'bar');
+                return (new Psr17Factory())->createRequest('GET', 'https://example.com')->withHeader('X-Foo', 'bar');
             }
         };
 
@@ -36,7 +36,7 @@ public function handleRequest(RequestInterface $request): RequestInterface
             } else {
                 self::assertSame($handlerTwo, $handler);
             }
-            $request = $handler->handleRequest(new Psr17Factory()->createRequest('GET', 'https://example.com'));
+            $request = $handler->handleRequest((new Psr17Factory())->createRequest('GET', 'https://example.com'));
             self::assertSame('bar', $request->getHeaderLine('X-Foo'));
         }
     }