chore(deps): update docker/build-push-action action to v6.12.0#15

renovate[bot] merged 1 commit intomaintensorchord/cloudnative-vectorchord:mainfrom

renovate/docker-build-push-action-6.xtensorchord/cloudnative-vectorchord:renovate/docker-build-push-action-6.xCopy head branch name to clipboard