[TASK] Add User- and PageTsConfig old include tag test coverage

This change add additional functional tests to ensure old
import tag syntax works in PageTsConfig UserTsConfig,
from row templates and global array registration.

Resolves: #99868
Releases: main, 12.4
Change-Id: I8921242fb5af3b2b4acf2c60ed74ee31e2589783
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/79814


Tested-by: core-ci <typo3@b13.com>
Reviewed-by: Stefan Bürk <stefan@buerk.tech>
Tested-by: Stefan Bürk <stefan@buerk.tech>