[TASK] Require Symfony 7.0+

TYPO3 v13 requires Symfony 7,
which will be subsequently updated
until Symfony 7.4 (LTS)

Symfony 7 requires PHP 8.2, and
will have support until November 2028
whereas Symfony 6 will "only" have
support until November 2026.

Used commands:

composer req --dev -W \
 "symfony/translation:^7.0" \
 "composer/composer:^2.6.5"

composer req -W \
 "symfony/config:^7.0" \
 "symfony/console:^7.0" \
 "symfony/dependency-injection:^7.0" \
 "symfony/doctrine-messenger:^7.0" \
 "symfony/expression-language:^7.0" \
 "symfony/filesystem:^7.0" \
 "symfony/finder:^7.0" \
 "symfony/http-foundation:^7.0" \
 "symfony/mailer:^7.0" \
 "symfony/messenger:^7.0" \
 "symfony/mime:^7.0" \
 "symfony/options-resolver:^7.0" \
 "symfony/property-access:^7.0" \
 "symfony/property-info:^7.0" \
 "symfony/rate-limiter:^7.0" \
 "symfony/routing:^7.0" \
 "symfony/uid:^7.0" \
 "symfony/var-dumper:^7.0" \
 "symfony/yaml:^7.0"

Resolves: #102786
Releases: main
Change-Id: I93adeadd9a711352c7a916fe83e42f2bb9c69f5d
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/82273


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