Allow installation of version 3.0 of composer installers,
which will be compatible with Composer 2.0.

composer req typo3/cms-composer-installers:"^2.0 || ^3.0"

Resolves: #90877
Releases: 9.5, master
Change-Id: I5200b64b0d6402617bb355da9c7d2c59cdd54b03
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/63998


Tested-by: TYPO3com <noreply@typo3.com>
Tested-by: Georg Ringer <georg.ringer@gmail.com>
Tested-by: Benni Mack <benni@typo3.org>
Reviewed-by: Georg Ringer <georg.ringer@gmail.com>
Reviewed-by: Oliver Klee <typo3-coding@oliverklee.de>
Reviewed-by: Benni Mack <benni@typo3.org>