⚠️ This issue respects the following points: ⚠️

• This is a bug, not a question or a configuration/webserver/proxy issue.
• This issue is not already reported on Github OR Nextcloud Community Forum (I've searched it).
• Nextcloud Server is up to date. See Maintenance and Release Schedule for supported versions.
• I agree to follow Nextcloud's Code of Conduct.

Bug description

When I click the update all button in the integrated app store, only a single app is updated.

Steps to reproduce

1. Go to "Apps".
2. Have at least two apps with updates.
3. Click the "Update all" button at the top.
4. Observe that only a single app is updated.

Expected behavior

All apps should be updated in sequence. It used to work like this before.

Nextcloud Server version

30.0.4.1