When scheduling jobs with --sha1 instead of -c. The ceph-ci
branch used is 'main'. However, ceph-ci doesn't actually have
a main branch - Instead use ceph.git main branch.
```
Command failed on smithi116 with status 8: "wget -q -O
/home/ubuntu/cephtest/admin_socket_client.0/objecter_requests --
'http://git.ceph.com/?p=ceph-ci.git;a=blob_plain;f=src/test/admin_socket/objecter_requests;hb=main' && chmod u=rx -- /home/ubuntu/cephtest/admin_socket_client.0/objecter_requests"
```
Signed-off-by: Matan Breizman <mbreizma@redhat.com>
so we can cater the needs of different implementation of osd, i.e.,
classic osd and crimson osd. they offer different set of asock commands.
Signed-off-by: Kefu Chai <kchai@redhat.com>
