Fix registry version updater

[svrnm]

The workflow to update versions in the registry was broken due to some errors introduced by PHP packages missing the open-telemetry prefix. I fixed those files, but also introduced 2 additional changes:

• A way to catch errors if getting the latest version for a package fails, so a situation like this will not break the workflow again
• A way to check if any versions have been updated and only if a new PR will be created, otherwise the script will always terminate with error