replace strip_tags() with htmlspecialchars_decode()

core/modules/user/tests/src/Functional/UserPasswordResetTest.php

@@ -336,7 +336,7 @@ public function checkBodyText(): bool {
     // Assume the most recent email.
     $_emails = $this->drupalGetMails();
     $email = end($_emails);
-    if (strip_tags($email['body']) === $email['body']) {
+    if (htmlspecialchars_decode($email['body']) === $email['body']) {
       return TRUE;
     }
     return FALSE;