fix: add OCI tag handling and update unittests

mentioned in commit ba7d2373

mentioned in commit e749cf70

mentioned in merge request hoppr/plugins/hoppr-jq-filter-plugin!14 (merged)

mentioned in merge request hoppr/plugins/hoppr-openssf-scorecard-plugin!50 (closed)

mentioned in merge request hoppr-cop!463 (merged)

mentioned in merge request hoppr/plugins/hoppr-nexus-bundler!247 (closed)

mentioned in merge request hoppr/plugins/starter-plugin!10 (merged)