[TASK] Raise typo3/testing-framework:dev-main

testing-framework got a series of v12 related
deprecation removals and streamlinings already
that we should fetch.

It also switched branch name from master to main,
which we should use from now on.

composer req --dev typo3/testing-framework:dev-main

Change-Id: I9bef4857ff7bec502ec5d5eaacf013d111b6d645
Resolves: #96100
Releases: master
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/72322


Tested-by: core-ci <typo3@b13.com>
Tested-by: Andreas Fernandez <a.fernandez@scripting-base.de>
Tested-by: Nikita Hovratov <nikita.h@live.de>
Tested-by: Stefan Bürk <stefan@buerk.tech>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>
Reviewed-by: Andreas Fernandez <a.fernandez@scripting-base.de>
Reviewed-by: Nikita Hovratov <nikita.h@live.de>
Reviewed-by: Stefan Bürk <stefan@buerk.tech>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>