* re-trigger ci 'must_update_changelog' and 'e2e_test' when labels change
Signed-off-by: xixi <i@hexilee.me>

* update skip check for e2e_test
Signed-off-by: xixi <i@hexilee.me>

* delete unused steps
Signed-off-by: xixi <i@hexilee.me>

* fix e2e_test
Signed-off-by: xixi <i@hexilee.me>

* fix e2e_test again
Signed-off-by: xixi <i@hexilee.me>

* revoke e2e_test
Signed-off-by: xixi <i@hexilee.me>

* trigger ci
Signed-off-by: YangKeao <yangkeao@chunibyo.icu>
Co-authored-by: YangKeao <yangkeao@chunibyo.icu>
Co-authored-by: Ti Chi Robot <ti-community-prow-bot@tidb.io>