Add OpenTelemetry to the managed set

Testing done

• LINE=weekly PLUGINS=opentelemetry bash local-test.sh
• LINE=2.504.x PLUGINS=opentelemetry bash local-test.sh
• LINE=2.492.x PLUGINS=opentelemetry bash local-test.sh
• LINE=2.479.x PLUGINS=opentelemetry bash local-test.sh

Submitter checklist

• Make sure you are opening from a topic/feature/bugfix branch (right side) and not your main branch!
• Ensure that the pull request title represents the desired changelog entry
• Please describe what you did
• Link to relevant issues in GitHub or Jira
• Link to relevant pull requests, esp. upstream and downstream changes
• Ensure you have provided tests that demonstrate the feature works or the issue is fixed