Issue #3274047: Do not use root User in tests unless absolutely necessary.

automatic_updates_extensions/tests/src/Functional/UpdaterFormTest.php

@@ -64,7 +64,12 @@ class UpdaterFormTest extends AutomaticUpdatesFunctionalTestBase {
   protected function setUp(): void {
     parent::setUp();
     $this->setReleaseMetadata(__DIR__ . '/../../fixtures/release-history/semver_test.1.1.xml');
-    $this->drupalLogin($this->rootUser);
+    $user = $this->createUser([
+      'administer site configuration',
+      'administer software updates',
+      'access site in maintenance mode',
+    ]);
+    $this->drupalLogin($user);
     $this->drupalPlaceBlock('local_tasks_block', ['primary' => TRUE]);
   }