Gluonts

Backporting fixes:
- Remove .to_timestamp() to fix interval plotting 2800 by abdulfatir
- Fix pd.Period serialization 2827 by abdulfatir
- Remove second call to create_lightning_module on torch estimator 2834 by pablovicente
- Fix torch DeepAREstimator in case context_length=1 2841 by lostella
- Ignore hidden files in FileDataset by default. 2847 by jaheba

Backporting fixes:
- Test: Set caplog level for shell tests. 2786 by jaheba
- Avoid zero scale in StudentTOutput 2791 by shchur
- Update setuptools and wheel in test workflow 2802 by lostella
- Fix: remove multiprocessing from TSFReader 2806 by lostella

Backporting fixes:
- Fix version cmdclass handling. 2735 by jaheba
- Remove usage of glide in tsf-reader. 2737 by jaheba
- Fix: use non-strict inequality in definition of coverage 2738 by lostella
- Update Available Models 2740 by abdulfatir
- Fix MXNet NOPScaler 2744 by abdulfatir
- Add scipy requirement 2745 by abdulfatir
- Fix dataset file discovery. 2777 by jaheba
- Fix pandas removed deprecations in tests 2778 by lostella
- Fix: Loading of nested paths in FileDataset. 2779 by jaheba
- Prophet: Pass 'item_id' and 'info' to forecast. 2780 by jaheba

Backporting fixes:
- Allow PyTorch 2.0 2724 by lostella
- Improve check for validation loop in lightning modules 2726 by lostella
- Update CP-Flow fork as extra dependency for MQF2 2727 by lostella
- Allow PyTorch Lightning 2.0 2728 by lostella
- Fix _version location for sdist. 2729 by jaheba
- Add warning for "object" features in PandasDataset 2731 by lostella
- Docs: Add extra requirements. 2732 by jaheba
- Fix validation loop check for Lightning modules 2733 by lostella

Backporting fixes:
- Fix ev.seasonal_error 2696 by lostella
- Docs: minor spelling fix 2701 by lostella
- Fix Pandas 2.0 compatibility issues 2710 by lostella
- Relax pandas requirement to include pandas 2.x. 2713 by jaheba
- Fix DistributionForecast failure on GPU 2714 by huibinshen