ci: skip commitlint for dependabot PRs
ci: skip commitlint for dependabot PRs

Dependabot creates commit messages that commitlint fails to parse
correctly. The messages contain simple references to which dependencies
are updated, and do not need full validation like manual written
messages do.

Signed-off-by: Niels de Vos <7bda0c0ee7f47171cc808e9e60292cbc5d8140dd@redhat.com>

ceph/ceph-csi,ceph/ceph-csi,ceph/ceph-csi,ceph/ceph-csi