1.3.1
DOC: add note about restarting conda environment after creation (#27387)
DOC use https links when possible (#25049)
CI Only run arm tests nightly (#26996)
DOC Add a 'Cython Best Practices, Conventions and Knowledge' section (#25608)
[MRG] DOC add __sklearn_is_fitted__ example (#26618)
DOC: Add HGBT on landing page (#26631)
DOC, MNT Typos found by codespell (#22906)
DOC fixes intersphinx warnings (#26779)