minor #38967 Switch nightly run to 8.0snapshot (derrabus)
minor #38967 Switch nightly run to 8.0snapshot (derrabus)

This PR was merged into the 4.4 branch.

Discussion
----------

Switch nightly run to 8.0snapshot

| Q             | A
| ------------- | ---
| Branch?       | 4.4
| Bug fix?      | no
| New feature?  | no
| Deprecations? | no
| Tickets       | N/A
| License       | MIT
| Doc PR        | N/A

It's too early to test on php 8.1, so let's switch to 8.0 instead.

Commits
-------

b4730cbe1d Switch nightly run to 8.0snapshot

zerkms/symfony,oleg-andreyev/symfony,MatTheCat/symfony,ogizanagi/symfony,Taluu/symfony,xabbuh/symfony,hhamon/symfony,phramz/symfony,hhamon/symfony,Slamdunk/symfony,Nyholm/symfony,xabbuh/symfony,paradajozsef/symfony,xabbuh/symfony,OskarStark/symfony,paradajozsef/symfony,mpdude/symfony,Slamdunk/symfony,nicolas-grekas/symfony,damienalexandre/symfony,OskarStark/symfony,MatTheCat/symfony,tucksaun/symfony,Taluu/symfony,nicolas-grekas/symfony,phramz/symfony,derrabus/symfony,ro0NL/symfony,phramz/symfony,sgehrig/symfony,zerkms/symfony,damienalexandre/symfony,derrabus/symfony,Slamdunk/symfony,oleg-andreyev/symfony,d-ph/symfony,d-ph/symfony,curry684/symfony,Nyholm/symfony,ro0NL/symfony,Tobion/symfony,Taluu/symfony,derrabus/symfony,damienalexandre/symfony,MatTheCat/symfony,ro0NL/symfony,curry684/symfony,zerkms/symfony,OskarStark/symfony,mpdude/symfony,Tobion/symfony,HeahDude/symfony,stof/symfony,sgehrig/symfony,phramz/symfony,MatTheCat/symfony,d-ph/symfony,Nyholm/symfony,ogizanagi/symfony,paradajozsef/symfony,symfony/symfony,nicolas-grekas/symfony,symfony/symfony,curry684/symfony,tucksaun/symfony,symfony/symfony,HeahDude/symfony,stof/symfony,symfony/symfony,d-ph/symfony,mpdude/symfony,ogizanagi/symfony,ro0NL/symfony,Slamdunk/symfony,hhamon/symfony,hhamon/symfony,ogizanagi/symfony,sgehrig/symfony,xabbuh/symfony,curry684/symfony,Tobion/symfony,HeahDude/symfony,damienalexandre/symfony,oleg-andreyev/symfony,sgehrig/symfony,HeahDude/symfony,derrabus/symfony,zerkms/symfony,nicolas-grekas/symfony,Tobion/symfony,oleg-andreyev/symfony,mpdude/symfony,paradajozsef/symfony,tucksaun/symfony,stof/symfony,OskarStark/symfony,Taluu/symfony,stof/symfony,Nyholm/symfony,tucksaun/symfony