Cockpit update replies: Loading available updates failed
W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: https://packages.sury.org/php bookworm InRelease: The following signatures were invalid: EXPKEYSIG B188E2B695BD4743 DEB.SURY.ORG Automatic Signing Key deb@sury.org E: https://packages.sury.org/php bookworm InRelease is not (yet) available (The following signatures were invalid: EXPKEYSIG B188E2B695BD4743 DEB.SURY.ORG Automatic Signing Key deb@sury.org)
This is not an ASL issue. Wherever you're running this from has a non-standard package library configured for PHP. So you configured Linux on that system to replace the stock PHP with the Sury.org repo. That's fine, but not supported or recommended because that usually means someone tried to get the bleeding edge PHP or a very old PHP.
You'd need to reconfigure the sury.org repository for that node with proper keys.