[TASK] Have static DP in RedirectRepositoryTest

Make a helper method static to allow
a static data provider.

Resolves: #100449
Related: #100249
Releases: main
Change-Id: I2fe4c4bf8125d40c8988ccce1927bc08d759b653
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/78463


Tested-by: core-ci <typo3@b13.com>
Tested-by: Oliver Klee <typo3-coding@oliverklee.de>
Reviewed-by: Oliver Klee <typo3-coding@oliverklee.de>
Reviewed-by: Stefan Bürk <stefan@buerk.tech>
Tested-by: Stefan Bürk <stefan@buerk.tech>