Removes CherryPicker step from BatchMerger
What does this MR do?
Removes CherryPicker step from BatchMerger because it's failing
Related to https://gitlab.com/gitlab-org/release-tools/-/issues/431
Removes CherryPicker step from BatchMerger because it's failing
Related to https://gitlab.com/gitlab-org/release-tools/-/issues/431