[stable33] test: test against server #58000

[icewind1991]

Run integration tests against nextcloud/server#58000

[nickvergessen]

--- Failed scenarios:

/home/runner/actions-runner/_work/spreed/spreed/apps/spreed/tests/integration/features/chat-2/mentions.feature:401 (on line 442)
/home/runner/actions-runner/_work/spreed/spreed/apps/spreed/tests/integration/features/chat-2/mentions.feature:461 (on line 498)
/home/runner/actions-runner/_work/spreed/spreed/apps/spreed/tests/integration/features/chat-2/mentions.feature:564 (on line 580)

• Those 3 changes are "okay" from my POV it's basically reverting the "to be discussed" change I added in the previous PR to make it green:
  • [stable33] test(mention): Correctly assert that users are added to room when men… #16918
  • Commit a764cc1

[nickvergessen]

conversation-2 failure is also visible on server PR:

Call to a member function getUID() on string in file '/home/runner/actions-runner/_work/spreed/spreed/lib/private/Files/Node/Root.php' line 451

[icewind1991]

updated the server branch and re-triggered the tests

[icewind1991]

Only the 3 "ok" errors left, server change look good then