Merge branch 'master' into neuralpint

CHANGELOG.md

CITATION.cff

docs/source/conf.py

etc/environment-mpi4py.yml

pySDC/core/problem.py

pySDC/helpers/fieldsIO.py

pySDC/helpers/spectral_helper.py

pySDC/implementations/hooks/log_solution.py

pySDC/implementations/problem_classes/Burgers.py

...implementations/problem_classes/HeatEquation_Chebychev.py

pySDC/implementations/problem_classes/RayleighBenard.py

pySDC/implementations/problem_classes/TestEquation_0D.py

pySDC/implementations/problem_classes/generic_spectral.py

pySDC/projects/GPU/configs/GS_configs.py

pySDC/projects/GPU/configs/RBC_configs.py

pySDC/projects/GPU/tests/test_configs.py

pySDC/tests/test_helpers/test_spectral_helper.py

pySDC/tests/test_hooks/test_log_to_file.py

pyproject.toml