:red_circle: Bug fixes

• Fixed type conversion issues in keyedvectors.py (e.g., get_mean_vector, sort_by_descending_frequency, save_word2vec_format). (julianpollmann, #3615)
• Fixed type issues in ldamodel.py update_dir_prior(). (julianpollmann, #3615)
• Removed deprecated usage of scipy.sparsetools to e.g., scipy.sparse.csc_matvecs, scipy.sparse.csc_matrix. (hechth, julianpollmann, #3615)
• Corrected sorting behavior and dtype compatibility problems. (julianpollmann, #3615)
• Fixed issues in internal Cython 3 modules (nogil, noexcept, type definitions). (julianpollmann, #3615)

:books: Tutorial and doc improvements

:+1: Improvements

• Add support for python3.13 wheels (julianpollmann, #3615)
• Removed support for python3.8 wheels (julianpollmann, #3615)
• Removed NMSLib support for Python >=3.10 and numPy >=2 (julianpollmann, #3615)
• Fixed typo 'Replaceed' → 'Replaced' (nakanoh, #3613)