Update copyright year range to be dynamic

Release v1.3.0

Merge pull request #17 from Curucail/update-project-dependencies

fix extlinks for Sphinx 7.x compatibility

bump version

update docs/environment.yml

update readme to include new python version

update project dependencies to work with python 3.12

allow for higher music21 version

make numpy datatypes used in tempogram plotting compatible for numpy>=2 and allow for numpy>=2

Update c6s2_tempo_analysis.py

minor fixes (fixed wrong version number in c6s1_onset_detection.html, fixed depdencies to build libfmp focs)

version 1.2.6

Update c6s1_onset_detection.py

allow pandas > 2.0 (#14)