openSUSE admin

Hello heroes!

several people reported issues with 15.5 backports repodata, and the issue eventually fixed itself.
It looks like we were getting an old repomd.xml from the CDN. Seems like there is another caching issue or similar.

Repository 'Update repository of openSUSE Backports' is invalid.
[repo-backports-update|http://download.opensuse.org/update/leap/15.5/backports/] Valid metadata not found at specified URL
History:
 - File './repodata/17ae8173cdfdf2bc790d39306bf208695ae3fd9e09b0d370a1a687e2538bfc9f-deltainfo.xml.gz' not found on medium 'http://download.opensus
e.org/update/leap/15.5/backports/'
 - Can't provide ./repodata/17ae8173cdfdf2bc790d39306bf208695ae3fd9e09b0d370a1a687e2538bfc9f-deltainfo.xml.gz

This was raised also on #discuss-opensuse
https://suse.slack.com/archives/C028VS8TM2B/p1711705649584589

$ curl -kv http://download.opensuse.org/update/leap/15.5/backports/repodata/repomd.xml
*   Trying 2a07:de40:b250:131:10:151:131:30:80...
* connect to...to download.opensuse.org (195.135.223.226) port 80 (#0)
> GET /update/leap/15.5/backports/repodata/repomd.xml HTTP/1.1
> Host: download.opensuse.org
> User-Agent: curl/7.79.1
> Accept: */*
> 
*...
# curl -kv http://download.opensuse.org/update/leap/15.5/backports/repodata/repomd.xml
*   Trying 195.135.221.134:80...
* connect to 195.135.221.134 port 80 failed:...