Extend universal-block-log container registry tag

Fixes an issue with automatic cleaning of the universal-block-logs container registry. Automatic image cleaning is enabled for images older than 7 days - this is not recommended behavior for universal-block-log images. To avoid automatic cleaning, the tag name has been extended with the prefix universal-block-log (full tag name: universal-block-log-<commit-hash>). A prefix has also been added to the filter exceptions that ensures bypassing automatic cleaning (.*universal-block-log.*)