Resolve "Fix `spec/frontend/content_editor/components/wrappers/code_block_spec.js`"

Vanessa Ottorequested to merge
483193-fix-spec-frontend-content_editor-components-wrappers-code_block_spec-js into master

What does this MR do and why?

Close #483193 (closed)

MR acceptance checklist

Please evaluate this MR against the MR acceptance checklist. It helps you analyze changes to reduce risks in quality, performance, reliability, security, and maintainability.

How to set up and validate locally

Run the spec in Vue 2 and Vue 3 mode:

yarn jest spec/frontend/content_editor/components/wrappers/code_block_spec.js
VUE_VERSION=3 yarn jest spec/frontend/content_editor/components/wrappers/code_block_spec.js
Edited by Mark Florian

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