[5.2][system tests] Do not delete tuf metadata

[SniperSister]

Pull Request for Issue #44859 , alternative approach to #44861

Summary of Changes

Do not delete tuf_metadata in afterEach() cleanupDB

Testing Instructions

• run specs tests/System/integration/administrator/components/com_joomlaupdate/Update.cy.js
• check content of tuf_metadata table

Actual result BEFORE applying this Pull Request

table is empty

Expected result AFTER applying this Pull Request

one entry with id=1

Link to documentations

Please select:

• No documentation changes for docs.joomla.org needed
• No documentation changes for manual.joomla.org needed

[brianteeman]

This comment needs correcting as it is for inserting valid tuf data

joomla-cms/tests/System/support/commands/db.mjs

Line 650 in b5104a9

* Inserts an invalid tuf metadata set

[SniperSister]

done

[brianteeman]

I have tested this item ✅ successfully on 475a644

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[laoneo]

I have tested this item ✅ successfully on 475a644

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[QuyTon]

RTC

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_{This comment was created with the J!Tracker Application at issues.joomla.org/tracker/joomla-cms/44866.}