Hi,
I think it's known issue and potentially blocks running project on maintained Symfony version.
As I see ,package had conflict with symfony/http-foundation and it was fixed in PR #1063 and it was merged.
In the same time #1064 - marked as not planned, because issue was fixed in Symfony 7.4.1 and it confuses and looks like a blocker for Symfony upgrades.
Looks like as small fix required for composer and replace conflict dependency to smth like that:
....
"conflict": {
"symfony/http-foundation": ">=7.4.0 <7.4.1"
},
...
or that will be preferable by Pimcore developers.
What do u think about fix?