Investigation of `test_several_variables_put` in `test_dds.py`

[mo-gill]

In this issue, Matt recommended i add an xfail to test_several_variables_put as it was failing after the asserts were changed from mock_put.has_call to mock_put.assert_has_calls which was needed for the move from python 3.10 to 3.12. So this issue is for investigation of that.

Error output from the test:

TestMoosePut::test_several_variables_put - AssertionError: Calls not found.

E               AssertionError: Calls not found.
E               Expected: [call(<cdds.deprecated.transfer.drs.DataRefSyntax object at 0x7f89f8086810>, 'fake_local_top/GEOMIP/MOHC/HadGEM2-ES/G4seaSalt/r1i1p1', 'moose:fake/moose/dir/geomip/output/MOHC/HadGEM2-ES/G4seaSalt/mon/atmos/aero/r1i1p1/cdnc/embargoed/v20260119', <cdds.deprecated.transfer.drs.DataRefSyntax object at 0x7f89f8086810>, 'fake_local_top/GEOMIP/MOHC/HadGEM2-ES/G4seaSalt/r1i1p1', <function put at 0x7f89f810fe20>),
E                call(<cdds.deprecated.transfer.drs.DataRefSyntax object at 0x7f89f8145b50>, 'fake_local_top/GEOMIP/MOHC/HadGEM2-ES/G4seaSalt/r1i1p1', 'moose:fake/moose/dir/geomip/output/MOHC/HadGEM2-ES/G4seaSalt/mon/land/Lmon/r1i1p1/cLeaf/embargoed/v20260119', <cdds.deprecated.transfer.drs.DataRefSyntax object at 0x7f89f8145b50>, 'fake_local_top/GEOMIP/MOHC/HadGEM2-ES/G4seaSalt/r1i1p1', <function put at 0x7f89f810fe20>)]
E                 Actual: [call(<cdds.deprecated.transfer.drs.DataRefSyntax object at 0x7f89f8086810>, 'fake_local_top/GEOMIP/MOHC/HadGEM2-ES/G4seaSalt/r1i1p1/nc', 'moose:fake/moose/dir/geomip/output/MOHC/HadGEM2-ES/G4seaSalt/mon/atmos/aero/r1i1p1/cdnc/embargoed/v20260119', <function put at 0x7f89f810fe20>),
E                call(<cdds.deprecated.transfer.drs.DataRefSyntax object at 0x7f89f8145b50>, 'fake_local_top/GEOMIP/MOHC/HadGEM2-ES/G4seaSalt/r1i1p1/nc', 'moose:fake/moose/dir/geomip/output/MOHC/HadGEM2-ES/G4seaSalt/mon/land/Lmon/r1i1p1/cLeaf/embargoed/v20260119', <function put at 0x7f89f810fe20>)]