There were 3 failures:
1) Block_Fixture_Test::test_kses_doesnt_change_fixtures with data set #77 ('<!-- wp:file {"href":"https://... -->\n', 'core__file__pdf-preview.seria...d.html')
Failed to match core__file__pdf-preview.serialized.html
Failed asserting that two strings are identical.
--- Expected
+++ Actual
@@ @@
 '<!-- wp:file {"href":"https://localhost:8889/wp-content/uploads/2021/04/yolo.pdf","displayPreview":true,"previewHeight":370} -->
-<div class="wp-block-file"><object class="wp-block-file__embed" data="https://localhost:8889/wp-content/uploads/2021/04/yolo.pdf" type="application/pdf" style="width:100%;height:370px" aria-label="yolo"></object><a id="wp-block-file--media-_clientId_0" href="https://localhost:8889/wp-content/uploads/2021/04/yolo.pdf">yolo</a><a href="https://localhost:8889/wp-content/uploads/2021/04/yolo.pdf" class="wp-block-file__button wp-element-button" download aria-describedby="wp-block-file--media-_clientId_0">Download</a></div>
+<div class="wp-block-file"><object></object><a id="wp-block-file--media-_clientId_0" href="https://localhost:8889/wp-content/uploads/2021/04/yolo.pdf">yolo</a><a href="https://localhost:8889/wp-content/uploads/2021/04/yolo.pdf" class="wp-block-file__button wp-element-button" download aria-describedby="wp-block-file--media-_clientId_0">Download</a></div>
 <!-- /wp:file -->
 '
/var/www/html/wp-content/plugins/gutenberg/phpunit/class-block-fixture-test.php:39
2) Block_Fixture_Test::test_kses_doesnt_change_fixtures with data set #78 ('<!-- wp:file {"href":"https://... -->\n', 'core__file__pdf-preview__depr...d.html')
Failed to match core__file__pdf-preview__deprecated-1.serialized.html
Failed asserting that two strings are identical.
--- Expected
+++ Actual
@@ @@
 '<!-- wp:file {"href":"https://localhost:8889/wp-content/uploads/2021/04/yolo.pdf","displayPreview":true,"previewHeight":370} -->
-<div class="wp-block-file"><object class="wp-block-file__embed" data="https://localhost:8889/wp-content/uploads/2021/04/yolo.pdf" type="application/pdf" style="width:100%;height:370px" aria-label="yolo"></object><a href="https://localhost:8889/wp-content/uploads/2021/04/yolo.pdf">yolo</a><a href="https://localhost:8889/wp-content/uploads/2021/04/yolo.pdf" class="wp-block-file__button wp-element-button" download>Download</a></div>
+<div class="wp-block-file"><object></object><a href="https://localhost:8889/wp-content/uploads/2021/04/yolo.pdf">yolo</a><a href="https://localhost:8889/wp-content/uploads/2021/04/yolo.pdf" class="wp-block-file__button wp-element-button" download>Download</a></div>
 <!-- /wp:file -->
 '
/var/www/html/wp-content/plugins/gutenberg/phpunit/class-block-fixture-test.php:39
3) WP_REST_Global_Styles_Controller_Gutenberg_Test::test_get_theme_items
Theme item should match expected schema
Failed asserting that two arrays are identical.
--- Expected
+++ Actual
@@ @@
             )
             'wp:theme-file' => Array &5 (
                 0 => Array &6 (
-                    'href' => 'https://localhost:8889/wp-content/themes/emptytheme/img/1024x768_emptytheme_test_image.jpg'
+                    'href' => 'https://localhost:8991/wp-content/themes/emptytheme/img/1024x768_emptytheme_test_image.jpg'
                     'name' => 'file:./img/1024x768_emptytheme_test_image.jpg'
                     'target' => 'styles.background.backgroundImage.url'
                     'type' => 'image/jpeg'
/wordpress-phpunit/includes/abstract-testcase.php:994
/var/www/html/wp-content/plugins/gutenberg/phpunit/class-wp-rest-global-styles-controller-gutenberg-test.php:211