[Bug]: Very slow access to apps.nextcloud.com/api/v1/apps.json for checking app updates

### ⚠️ This issue respects the following points: ⚠️

- [X] This is a **bug**, not a question or a configuration/webserver/proxy issue.
- [X] This issue is **not** already reported on [Github](https://github.com/nextcloud/server/issues?q=is%3Aopen+is%3Aissue+label%3Abug) OR [Nextcloud Community Forum](https://help.nextcloud.com/) _(I've searched it)_.
- [X] Nextcloud Server **is** up to date. See [Maintenance and Release Schedule](https://github.com/nextcloud/server/wiki/Maintenance-and-Release-Schedule) for supported versions.
- [X] I agree to follow Nextcloud's [Code of Conduct](https://nextcloud.com/contribute/code-of-conduct/).

### Bug description

Often to always failed when checking for Apps Update caused by very slow access to https://apps.nextcloud.com/api/v1/apps.json
Connection speed on the Client and on the Server seems normal, but when accessing https://apps.nextcloud.com/api/v1/apps.json either from the server or from the client is pretty slow (mostly failed to load) for json file to be loaded completely.

### Steps to reproduce

1. Login
2. Go to Admin Page
3. Overview Menu
4. Never finish "Checking apps for compatible versions"

### Expected behavior

Checking update for apps completed successfully.

### Installation method

Community Manual installation with Archive

### Nextcloud Server version

28

### Operating system

Debian/Ubuntu

### PHP engine version

PHP 8.2

### Web server

Apache (supported)

### Database engine version

MariaDB

### Is this bug present after an update or on a fresh install?

Updated from a MINOR version (ex. 22.1 to 22.2)

### Are you using the Nextcloud Server Encryption module?

Encryption is Disabled

### What user-backends are you using?

- [ ] Default user-backend _(database)_
- [X] LDAP/ Active Directory
- [ ] SSO - SAML
- [ ] Other

### Configuration report

_No response_

### List of activated Apps

_No response_

### Nextcloud Signing status

_No response_

### Nextcloud Logs

```shell
[appstoreFetcher] Warning: Could not connect to appstore: cURL error 28: Operation timed out after 60000 milliseconds with 903254 out of 6408674 bytes received (see https://curl.haxx.se/libcurl/c/libcurl-errors.html) for https://apps.nextcloud.com/api/v1/apps.json
GET /ocs/v2.php/apps/updatenotification/api/v1/applist/28.0.5.1
from x.x.x.x by e2cd37b6-6ebf-103d-84c2-addc165358a8 at 3 Mei 2024, 09.09.50
```

### Additional info

_No response_