Bump actions/checkout from 5 to 6#253

Marenz merged 1 commit intov1.x.xfrequenz-floss/frequenz-client-dispatch-python:v1.x.xfrom

dependabot/github_actions/actions/checkout-6frequenz-floss/frequenz-client-dispatch-python:dependabot/github_actions/actions/checkout-6Copy head branch name to clipboard