build: bump actions/checkout from 2 to 4#178

Prasanjeet-Microsoft merged 1 commit into

dependabotchangesmicrosoft/Conversation-Knowledge-Mining-Solution-Accelerator:dependabotchangesfrom

dependabot/github_actions/dependabotchanges/actions/checkout-4microsoft/Conversation-Knowledge-Mining-Solution-Accelerator:dependabot/github_actions/dependabotchanges/actions/checkout-4Copy head branch name to clipboard