[TASK] Migrate test fixtures from XML to CSV

The following extensions now only use CSV files for test fixtures:
* felogin
* recordlist
* seo

Resolves: #96770
Releases: main, 11.5
Change-Id: I55e4786d3a08d7049b1310edf98551831758c292
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/73311


Tested-by: core-ci <typo3@b13.com>
Tested-by: Stefan Bürk <stefan@buerk.tech>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>
Reviewed-by: Stefan Bürk <stefan@buerk.tech>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>