change value dropdown to name

[Herafia]

Checklist before requesting a review

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• I have read the CONTRIBUTING document.
• I have performed a self-review of my code.
• I have added tests that prove my fix is effective or that my feature works.

Description

A client reported an issue when exporting and re-importing business rules for tickets in an environment where ITIL categories were translated.
During export, the XML file contained the translated value of the ITIL category (depending on the user interface language), but during import, the rule engine only recognized the original (non-translated) category name.
As a result, importing rules failed when the export and import were performed in different languages.
The export process has been adjusted to always include the category name (fields["name"]), regardless of the interface language used at the time of export.

• It fixes !39802

Change:
The XML export now returns the label (fields['name']) for dropdown references instead of the ID.
This improves readability and consistency with other export formats.

Modifications:
Updated the expected test in phpunit/functional/RuleRightCollectionTest.php to use fields['name'] when building the expected XML output.

Screenshots (if appropriate):