updated gdpopt solver call

[nareshsusarla]

Addresses issue:

Updates GDPopt solver call to address latest changes to pyomo GDPopt

Summary/Motivation:

Changes proposed in this PR:

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[codecov]

Codecov Report

Merging #141 (41e2c0d) into main (81847cb) will decrease coverage by 0.03%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main     #141      +/-   ##
==========================================
- Coverage   93.32%   93.29%   -0.04%     
==========================================
  Files          54       54              
  Lines        5904     5877      -27     
==========================================
- Hits         5510     5483      -27     
  Misses        394      394              

Impacted Files	Coverage Δ
...e/charge_design_ultra_supercritical_power_plant.py	96.53% <100.00%> (-0.04%)	⬇️
...ischarge_design_ultra_supercritical_power_plant.py	95.35% <100.00%> (-0.09%)	⬇️
..._plant/storage/tests/test_charge_usc_powerplant.py	100.00% <100.00%> (ø)
...ant/storage/tests/test_discharge_usc_powerplant.py	100.00% <100.00%> (ø)

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[lbianchi-lbl]

@nareshsusarla @esrawli Is this the test that's currently causing the long runtimes?

https://github.com/gmlc-dispatches/dispatches/blob/main/dispatches/case_studies/fossil_case/ultra_supercritical_plant/storage/tests/test_discharge_usc_powerplant.py#L106-L108

If so, you can do this so that it's skipped:

@pytest.skip(reason="Temporary skip after significant runtime increase with Pyomo 6.4.2")
@pytest.mark.integration
def test_usc_discharge_model(model):
    # Add missing functions to complete the discharge model (add bounds
    # and disjunctions)
    discharge_usc.add_bounds(model, power_max=power_max)
    discharge_usc.disconnect_arcs(model)
    discharge_usc.add_disjunction(model)

[esrawli]

We added a maximum number of iterations to the NLP solver in GDPopt to reduce the runtime of discharge test instead of skipping the function that was causing the long runtime