Update pythonpackage.yml to add windows build

[gaugup]

[github-actions[bot]]

Unit Test Results

0 files   -     1  0 suites   - 1   0s :stopwatch: - 13m 2s 0 tests  - 221  0 :heavy_check_mark:  - 216  0 :zzz:  - 5  0 :x: ±0 

Results for commit 4051b55e. ± Comparison against base commit e6a1dc38.

This pull request removes 221 tests.

tests.test_counterfactual_explanations.TestCounterfactualExplanations ‑ test_sorted_local_importance_counterfactual_explanations
tests.test_counterfactual_explanations.TestCounterfactualExplanations ‑ test_sorted_summary_importance_counterfactual_explanations
tests.test_counterfactual_explanations.TestSerializationCounterfactualExplanations ‑ test_counterfactual_explanations_output[0-2-1.0]
tests.test_counterfactual_explanations.TestSerializationCounterfactualExplanations ‑ test_counterfactual_explanations_output[0-2-2.0]
tests.test_counterfactual_explanations.TestSerializationCounterfactualExplanations ‑ test_empty_counterfactual_explanations_object[1.0]
tests.test_counterfactual_explanations.TestSerializationCounterfactualExplanations ‑ test_empty_counterfactual_explanations_object[2.0]
tests.test_counterfactual_explanations.TestSerializationCounterfactualExplanations ‑ test_local_importance_output[0-10-1.0]
tests.test_counterfactual_explanations.TestSerializationCounterfactualExplanations ‑ test_local_importance_output[0-10-2.0]
tests.test_counterfactual_explanations.TestSerializationCounterfactualExplanations ‑ test_no_counterfactuals_found[0-2-1.0]
tests.test_counterfactual_explanations.TestSerializationCounterfactualExplanations ‑ test_no_counterfactuals_found[0-2-2.0]
…

:recycle: This comment has been updated with latest results.

[gaugup]

Added windows build to gates in another PR.