Test the replacement method too

Author: GrahamCampbell

tests/Psr17FactoryDiscoveryTest.php

@@ -42,6 +42,7 @@ public function getFactories()
         yield ['findServerRequestFactory', ServerRequestFactoryInterface::class];
         yield ['findStreamFactory', StreamFactoryInterface::class];
         yield ['findUploadedFileFactory', UploadedFileFactoryInterface::class];
+        yield ['findUriFactory', UriFactoryInterface::class];
         yield ['findUrlFactory', UriFactoryInterface::class];
     }
 }