update test matrix

gha wheels update

MAINT: fix version conflict (stefan-jansen#48)

* address seaborn 0.13 error
* various GHA updates
* require pandas >= 1.3
* address stefan-jansen#38

Update to Python 3.12 (stefan-jansen#46)

* fixed typos
* update black version
* update workflows
* update tox env; pandas > 1.1
* fix empyrical version check
* skip sharpe test if pd<1.4

fix boolean input

Merge branch 'main' of github.com:stefan-jansen/pyfolio-reloaded into…

… main

remove nbs test

conda packages

BUG Get axis instead of figure.

DOC: add pandas version