minor twigphp#4193 Remove escape (ruudk)

This PR was merged into the 3.x branch.

Discussion
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Remove escape

Interestingly this didn’t fail on the branch that introduced the change. Are we sure the integration tests work at all?

See [failing job](https://github.com/twigphp/Twig/actions/runs/10341129793) on merge to main.

Commits
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8ef1258 Remove escape

extra/html-extra/Tests/Fixtures/data_uri.test

@@ -1,7 +1,7 @@
 --TEST--
 "data_uri" filter
 --TEMPLATE--
-{{ 'foobar#'|data_uri(parameters={charset: "utf-8", foo: "\$bar"}) }}
+{{ 'foobar#'|data_uri(parameters={charset: "utf-8", foo: "$bar"}) }}
 {{ '<b>foobar</b>'|data_uri(mime="text/html", parameters={charset: "ascii"}) }}
 <img src="{{ sf_logo|data_uri }}" />
 --DATA--