[TASK] Replace prophecy in EXT:core/*/Unit/DataHandling/SoftReference/*

Resolves: #98808
Releases: main
Change-Id: I24bbb0b74a238e2488fd60c67d502bba7fa3079c
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/76579


Reviewed-by: Oliver Klee <typo3-coding@oliverklee.de>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: core-ci <typo3@b13.com>
Tested-by: Oliver Klee <typo3-coding@oliverklee.de>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>