More integrations & sample playbooks

This changelog mentions newly added integrations (Cloudwatch Logs, Clickhouse DB) and sample playbooks as well as improvements to playbook metadata loading time and upgrades.

Integrations added:

  • Cloudwatch Logs
  • Clickhouse DB

Feature work:

  • Playbook metadata loading time
  • Enabling sample playbooks for all users
  • Playbook upgrade -- deletion, adding notes, external links & markdown