CI: fix failing integration tests

[blizzz]

Summary

Incompatible phpunit versions were running

A summary job was added so we can add it to the required ones.

Checklist

• Code is properly formatted
• Sign-off message is added to all commits
• Tests (unit, integration, api and/or acceptance) are included
• Documentation (manuals or wiki) has been updated or is not required

🤖 AI (if applicable)

• The content of this PR was partly or fully generated using AI (N/A)

[blizzz]

/backport to stable35

[github-actions]

🐢 Performance warning.
It looks like the query count of the integration tests increased with this PR.
Database query count is now 205491 was 198420 (+3.56%)
Please check your code again. If you added a new test this can be expected and the base value in tests/integration/base-query-count.txt can be increased.

[blizzz]

cypress is unrelated

[backportbot]

The backport to stable35 failed. Please do this backport manually.

# Switch to the target branch and update it
git checkout stable35
git pull origin stable35

# Create the new backport branch
git checkout -b backport/8500/stable35

# Cherry pick the change from the commit sha1 of the change against the default branch
# This might cause conflicts, resolve them
git cherry-pick 22f77930 891a81f5

# Push the cherry pick commit to the remote repository and open a pull request
git push origin backport/8500/stable35

Error: Failed to create pull request: Validation Failed: {"resource":"PullRequest","code":"custom","message":"A pull request already exists for nextcloud:backport/8500/stable35."} - https://docs.github.com/rest/pulls/pulls#create-a-pull-request

---

Learn more about backports at https://docs.nextcloud.com/server/stable/go.php?to=developer-backports.