v1.17.0

Changes:

• GroupIndexStep2: Don't index into empty array
• Update all GitHub actions to Node20
• Tidy up tests
• Take out hard-coded PYTHONHOME from python_test
• Add support for oldest-supported NumPy
• Enforce min numpy version for runtime/tests
• gen_requirements: developer requires native
• New conda index no longer recognizes --no-progress
• Feature/zstd checksumming
• Switch to conda + conda-index
• Resolve group by performance issues for float32
• Use conda_index module directly
• Fix false sharing in multithreaded groupby
• Add explicit numpy run req in conda pkg
• Use float64 intermediate values for var and nanvar
• Remove local_scheme for setuptools_scm
• Fix GH uploads
• once more...