Merge pull request #34547 from tspmelo/wip-45083-octopus

octopus: mgr/dashboard: Fix iSCSI's username and password validation

Reviewed-by: Ricardo Marques <rimarques@suse.com>
Reviewed-by: Stephan Müller <smueller@suse.com>
Reviewed-by: Laura Paduano <lpaduano@suse.com>

diff --cc src/pybind/mgr/dashboard/controllers/iscsi.py
Simple merge

diff --cc src/pybind/mgr/dashboard/tests/test_iscsi.py
Simple merge