Issue #3138789 by sja112, jungle, Maithri Shetty: Fix "blockquote" relevant typos in core

core/tests/Drupal/Tests/Component/Utility/XssTest.php

@@ -247,7 +247,7 @@ public function providerTestFilterXssNotNormalized() {
       [
         '<blockquote><script>alert(0)</script></blockquote>',
         'script',
-        'HTML tag stripping evasion -- script in a blockqoute.',
+        'HTML tag stripping evasion -- script in a blockquote.',
         ['blockquote'],
       ],
       [