tests: disable same_upstream_downstream in release-8.5 CI#4423

wlwilliamx merged 1 commit intopingcap:release-8.5pingcap/ticdc:release-8.5from

wlwilliamx:fix/disable-same-upstream-downstream-ci-release-8.5wlwilliamx/ticdc:fix/disable-same-upstream-downstream-ci-release-8.5Copy head branch name to clipboard