deps: update repo-automation-bots digest to 3a68a9c#3620

lqiu96 merged 1 commit intogoogleapis:maingoogleapis/sdk-platform-java:mainfrom

renovate-bot:renovate/repo-automation-bots-digestrenovate-bot/gapic-generator-java:renovate/repo-automation-bots-digestCopy head branch name to clipboard