mgr/dashboard: API Version changes doesnt appy to pre-defined methods(list, create...

mgr/dashboard: API Version changes doesnt appy to pre-defined methods(list, create etc.)

Methods like list(), create(), get() etc doesn't get applied the version.Also for the endpoints that get the version changed, the docs and the request header has still the version v1.0+ in them. So with the version reduced it gives 415 error when trying to make the request. This PR fixes this issue.

Fixes: https://tracker.ceph.com/issues/50855
Signed-off-by: Aashish Sharma <aasharma@redhat.com>
(cherry picked from commit bb52092cd37855a3dfcfae9287e231865e9af3fa)

Conflicts:
    src/pybind/mgr/dashboard/controllers/__init__.py(resolved conflicts due to https://github.com/ceph/ceph/pull/40063)
    src/pybind/mgr/dashboard/tests/test_docs.py(removed unused import DEFAULT_VERSION)