CSS caret-shape: Update wpt overflow caret-eol-004.tentative.html.

We have changed the test reference at CL 6971531. The test is now
expecting a mismatch from the reference test.

Bug: 353713061
Change-Id: I6796ad6af90164282107e0b560149f7dca77c923
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/7008373
Reviewed-by: Emilio Cobos Álvarez <emilio@chromium.org>
Commit-Queue: Ziran Sun <zsun@igalia.com>
Cr-Commit-Position: refs/heads/main@{#1525200}

Author: ziransun

css/css-ui/caret-eol-004.tentative.html

@@ -4,7 +4,7 @@
 <title>CSS Basic User Interface Test: end-of-line carets should be visible</title>
 <link rel="author" title="Florian Rivoal" href="mailto:florian@rivoal.net">
 <link rel="help" href="http://www.w3.org/TR/css4-ui/#caret-shape">
-<link rel=match href=reference/caret-eol-001.html>
+<link rel="mismatch" href=reference/caret-eol-001.html>
 <meta name="assert" content="Checks that carets positioned at the end of the line are shown even if they overflow. If the box has hidden overflow extending past the scrollport, the caret is display at the end of the visible line.">
 <style>
 div {