Try replacing pip with uv pip in main tox test suite

[ajjackson]

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[github-actions]

Test Results

  2 files   -     31    2 suites   - 31   3m 9s ⏱️ - 1h 47m 35s
111 tests  -    955  110 ✅  -    950  1 💤  -   5  0 ❌ ±0 
111 runs   - 17 909  110 ✅  - 17 804  1 💤  - 105  0 ❌ ±0 

Results for commit 0580dc9. ± Comparison against base commit fb4549d.

This pull request removes 955 tests.

euphonic_test.test_brille_interpolator ‑ test_import_without_brille_raises_err
euphonic_test.test_brille_interpolator.TestBrilleInterpolatorCalculateQpointFrequencies ‑ test_brille_qpoint_frequencies_similar_to_those_from_fc
euphonic_test.test_brille_interpolator.TestBrilleInterpolatorCalculateQpointFrequencies ‑ test_calculate_qpoint_frequencies[NaCl-from_fc_kwargs0-NaCl_trellis_10_qpoint_frequencies.json-0.01]
euphonic_test.test_brille_interpolator.TestBrilleInterpolatorCalculateQpointFrequencies ‑ test_calculate_qpoint_frequencies[quartz-from_fc_kwargs1-quartz_mesh_200_qpoint_frequencies.json-0.07]
euphonic_test.test_brille_interpolator.TestBrilleInterpolatorCalculateQpointPhononModes ‑ test_brille_qpoint_phonon_modes_similar_to_those_from_fc
euphonic_test.test_brille_interpolator.TestBrilleInterpolatorCalculateQpointPhononModes ‑ test_calculate_qpoint_phonon_modes[LZO-from_fc_kwargs0-100-La2Zr2O7_trellis_100_sf_1d_average.json]
euphonic_test.test_brille_interpolator.TestBrilleInterpolatorCalculateQpointPhononModes ‑ test_calculate_qpoint_phonon_modes_correct_kwargs_passed[LZO-lzo_trellis_10.hdf5-kwargs0]
euphonic_test.test_brille_interpolator.TestBrilleInterpolatorCalculateQpointPhononModes ‑ test_calculate_qpoint_phonon_modes_correct_kwargs_passed[LZO-lzo_trellis_10.hdf5-kwargs2]
euphonic_test.test_brille_interpolator.TestBrilleInterpolatorCalculateQpointPhononModes ‑ test_calculate_qpoint_phonon_modes_correct_kwargs_passed[quartz-quartz_mesh_10.hdf5-kwargs1]
euphonic_test.test_brille_interpolator.TestBrilleInterpolatorCalculateQpointPhononModes ‑ test_calculate_qpoint_phonon_modes_single_qpt
…

♻️ This comment has been updated with latest results.