Fix the random failure by increasing the timeout and introducing few minor refactor/bug fixes
Fixes#3970
Signed-off-by: Wenkai Yin(尹文开) <yinw@vmware.com>
Add the image pull secret to the service account when deploying velero and kibishii to avoid the image pull limit issue of Docker Hub
Fixes#3966
Signed-off-by: Wenkai Yin(尹文开) <yinw@vmware.com>