Fix issue with incorrect images custom attributes output in catalog module

[arendarenko]

Description (*)

Commit f40f24c which was merged since Magento 2.3.3-p1 caused a regression issue with custom attributes on category pages because method getCustomAttributes can contains content like data-attr-value="some-attr-content" data-attr2-value="some-attr-content" so it's a bad idea to escape it.

My changes reverts those escapes.

Contribution checklist (*)

• Pull request has a meaningful description of its purpose
• All commits are accompanied by meaningful commit messages
• All new or changed code is covered with unit/integration tests (if applicable)
• All automated tests passed successfully (all builds are green)

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[ihor-sviziev]

Hi @arendarenko,
Your changes looks good to me.
Could you cover your changes with integration tests in order not to make regression here in future?

[ihor-sviziev]

Hi @arendarenko,
I'm closing this PR because described issue was already fixed in #26959 (in little bit different way), and this PR already merged.

Thank you for collaboration!

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