[5.3] Installing sample blog data with lang debug on

[brianteeman]

Pull Request for Issue #31160.

Summary of Changes

Disable language debug to prevent debug_lang_const being added to the string

Testing Instructions

Enable language debugging on a fresh installation, then install sample blog data

Actual result BEFORE applying this Pull Request

Titles and texts have surrounding ** from language debugging

Expected result AFTER applying this Pull Request

Titles and texts are stored as usual

Link to documentations

Please select:

• Documentation link for docs.joomla.org:

• No documentation changes for docs.joomla.org needed

• Pull Request link for manual.joomla.org:

• No documentation changes for manual.joomla.org needed

[fgsw]

I have tested this item ✅ successfully on 1e61fa9

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