Use commit hash for dependabot-auto-approve action#237

Marenz wants to merge 1 commit intofrequenz-floss:v0.x.xfrequenz-floss/frequenz-client-dispatch-python:v0.x.xfrom

Marenz:update-dependabot-to-hashMarenz/frequenz-client-dispatch-python:update-dependabot-to-hashCopy head branch name to clipboard